text:
Office of Scientific and Technical Information
Glossary Balancing Item: Represents
Gasoline and Diesel Fuel Update (EIA)
Balancing Balancing Item: Represents differences between the sum of the components of natural gas supply and the sum of the components of natural gas disposition. These differences may be due to quantities lost or to the effects of data-report- ing problems. Reporting problems include differences due to the net result of conversions of flow data metered at varying temperature and pressure bases and converted to a standard temperature and pressure base; the effect of vari- ations in company accounting and billing practices; differ- ences between billing cycle and calendar period time frames; and imbalances resulting from the merger of data- reporting systems that vary in scope, format, definitions, and type of respondents. Biomass Gas: A medium Btu gas containing methane and carbon dioxide, resulting from the action of microorganisms on organic materials such as a landfill. British Thermal
Balancing Item (Billion Cubic Feet)
U.S. Energy Information Administration (EIA) Indexed Site
Balancing Item (Billion Cubic Feet) Balancing Item (Billion Cubic Feet) Balancing Item (Billion Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2001 140 143 41 166 30 -13 -8 -6 -26 -133 -76 -161 2002 -4 38 11 164 28 95 54 49 8 -124 -126 -129 2003 -86 76 118 43 30 16 80 57 12 -49 -136 -118 2004 -66 134 126 133 116 71 58 60 63 -13 -79 -142 2005 -41 104 14 131 60 58 62 66 59 -37 -114 -127 2006 49 -2 80 152 53 41 34 51 -2 -99 -101 -153 2007 -128 55 118 42 63 34 3 24 -3 -52 -185 -175 2008 -75 54 59 105 38 42 23 29 16 -51 -106 -132 2009 -21 104 59 52 30 -7 17 -1 -5 -92 -66 -173 2010 -46 9 109 102 19 61 2 16 21 -42 -61 -73 2011 -24 20 -4 17 -7 -11 17 7 36 -61 -32 -51
California Natural Gas Balancing Item (Million Cubic Feet)
Balancing Item (Million Cubic Feet) California Natural Gas Balancing Item (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's...
New Mexico Natural Gas Balancing Item (Million Cubic Feet)
Balancing Item (Million Cubic Feet) New Mexico Natural Gas Balancing Item (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's...
U.S. Natural Gas Balancing Item (Million Cubic Feet)
Balancing Item (Million Cubic Feet) U.S. Natural Gas Balancing Item (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 634,809...
Seasonality in the Natural Gas Balancing Item: Historical Trends and
Analysis > Seasonality in the Natural Gas Balancing Item: Historical Trends and Corrective Measures Analysis > Seasonality in the Natural Gas Balancing Item: Historical Trends and Corrective Measures Seasonality in the Natural Gas Balancing Item: Historical Trends and Corrective Measures Released: June 4, 2010 Download Full Report (PDF) This special report examines an underlying cause of the seasonal pattern in the balancing item published in the Natural Gas Monthly. Research finds that a significant portion of data collected on EIAs primary monthly natural gas consumption survey reflects billing data that does not strictly coincide with the actual calendar month, which creates an aggregate-level discrepancy with EIAs other natural gas supply and disposition data series. This discrepancy is especially observable during the fall and spring as one transitions into and out of the winter heating season. The report also outlines improved data collection and estimation procedures that will be implemented later this year to more closely align reported and actual calendar month consumption. This discussion will be helpful to users of EIAs volumetric natural gas data. Questions about this report should be directed to Andy Hoegh at email@example.com or (202) 586-9502.
Seasonality in the Natural Gas Balancing Item: Historical Trends and Corrective Measures
Reports and Publications (EIA)
This special report examines an underlying cause of the seasonal pattern in the balancing item published in the Natural Gas Monthly.
Andy Hoegh
NLE Websites -- All DOE Office Websites (Extended Search)
ITEM ITEM Revised 4/9/2013 APS LOM 438 DESCRIPTION Start Completion Duration Percent Complete 1-Apr 2-Apr 3-Apr 4-Apr 5-Apr 6-Apr 7-Apr 8-Apr 9-Apr 10-Apr 11-Apr 12-Apr 13-Apr 14-Apr 15-Apr 16-Apr 17-Apr 18-Apr 19-Apr 20-Apr 21-Apr 22-Apr 23-Apr 24-Apr 25-Apr 26-Apr 27-Apr 28-Apr 29-Apr 30-Apr 1-May 2-May 3-May 4-May 5-May 6-May 7-May 8-May 9-May 10-May 11-May 12-May 13-May 14-May 15-May 16-May 17-May 18-May 19-May 20-May 21-May 22-May 23-May 24-May 25-May 26-May 27-May 28-May 29-May 30-May 31-May 1-Jun 2-Jun 3-Jun 4-Jun 5-Jun 6-Jun 7-Jun 8-Jun 9-Jun 10-Jun 11-Jun 12-Jun 13-Jun 14-Jun 15-Jun 16-Jun 17-Jun 18-Jun 19-Jun 20-Jun 21-Jun 22-Jun 23-Jun 24-Jun 25-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 1-Jul 2-Jul 3-Jul 4-Jul 5-Jul 6-Jul 7-Jul 8-Jul 9-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul 15-Jul 16-Jul 17-Jul 18-Jul 19-Jul 20-Jul 21-Jul 22-Jul 23-Jul 24-Jul 25-Jul 26-Jul 27-Jul
Action Items
Energy.gov (U.S. Department of Energy (DOE)) Indexed Site
ACTION ITEMS ACTION ITEMS Presentation to the DOE High Level Waste Corporate Board July 29, 2009 Kurt Gerdes Office of Waste Processing DOE-EM Office of Engineering & Technology 2 ACTION ITEMS Action Item Status * Approve Performance Assessment Community of Practice Charter * Charter approved 13 July 2009 by majority vote of Board (balloting conducted by e- mail). * Report on first Performance Assessment Community of Practice meeting * Meeting held on 13-14 July 2009. Report by David Kosson, PhD, Vanderbilt University and CRESP * Update of Tank Waste Corporate Board Charter to include changes resulting from changes in Office of Environmental Management * In progress (pending completion of any reorganization) * Update of Performance Assessment Community of Practice Charter to include
Exploring the concept of compressed air energy storage (CAES) in lined rock caverns at shallow depth: A modeling study of air tightness and energy balance
Science Conference Proceedings (OSTI)
This paper presents a numerical modeling study of coupled thermodynamic, multiphase fluid flow and heat transport associated with underground compressed air energy storage (CAES) in lined rock caverns. Specifically, we explored the concept of using concrete lined caverns at a relatively shallow depth for which constructing and operational costs may be reduced if air tightness and stability can be assured. Our analysis showed that the key parameter to assure long-term air tightness in such a system was the permeability of both the concrete lining and the surrounding rock. The analysis also indicated that a concrete lining with a permeability of less than 1�10{sup -18} m{sup 2} would result in an acceptable air leakage rate of less than 1%, with the operational pressure range between 5 and 8 MPa at a depth of 100 m. It was further noted that capillary retention properties and the initial liquid saturation of the lining were very important. Indeed, air leakage could be effectively prevented when the air-entry pressure of the concrete lining is higher than the operational air pressure and when the lining is kept moist at a relatively high liquid saturation. Our subsequent energy-balance analysis demonstrated that the energy loss for a daily compression and decompression cycle is governed by the air-pressure loss, as well as heat loss by conduction to the concrete liner and surrounding rock. For a sufficiently tight system, i.e., for a concrete permeability off less than 1�10{sup -18} m{sup 2}, heat loss by heat conduction tends to become proportionally more important. However, the energy loss by heat conduction can be minimized by keeping the air-injection temperature of compressed air closer to the ambient temperature of the underground storage cavern. In such a case, almost all the heat loss during compression is gained back during subsequent decompression. Finally, our numerical simulation study showed that CAES in shallow rock caverns is feasible from a leakage and energy efficiency viewpoint. Our numerical approach and energy analysis will next be applied in designing and evaluating the performance of a planned full-scale pilot test of the proposed underground CAES concept.
Kim, H.-M.; Rutqvist, J.; Ryu, D.-W.; Choi, B.-H.; Sunwoo, C.; Song, W.-K.
News Item
Engineering electron nanoconduits in living bacteria Engineering electron nanoconduits in living bacteria This schematic shows that balanced expression of the Mtr electron conduit from Shewanella oneidensis in Escherichia coli enables E. coli to pass electrons across the membrane to an anode. Scientific Achievement A few specialized bacteria contain electron transfer protein complexes - electron nanoconduits - that allow them to reduce or oxidize an electrode. By exploring factors that control the synthesis of these electron nanoconduits, the model microbe Escherichia coli was engineered to deliver current to an electrode. Significance This work identifies conditions that allow for this electron transport system to be synthesized and function as electrical interface in non-native cell types. These cells can then interact directly with electronics,
Colorado Natural Gas Annual Supply and Disposition Balance
U.S. Energy Information Administration (EIA)
-No Data Reported; --= Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Notes: Balancing Item ...
Professional Registration Item Writer
Volunteer Training Module. March 2013. 1. Your Professional Partner for Career Advancement. Professional Registration. Item Writer. Online Training Module.
Central receiver solar thermal power system, Phase 1. CDRL item 2. Pilot plant preliminary design report. Volume VI. Electrical power generation and master control subsystems and balance of plant
DOE Green Energy (OSTI)
The requirements, performance, and subsystem configuration for both the Commercial and Pilot Plant electrical power generation subsystems (EPGS) and balance of plants are presented. The EPGS for both the Commercial Plant and Pilot Plant make use of conventional, proven equipment consistent with good power plant design practices in order to minimize risk and maximize reliability. The basic EPGS cycle selected is a regenerative cycle that uses a single automatic admission, condensing, tandem-compound double-flow turbine. Specifications, performance data, drawings, and schematics are included. (WHK)
Hallet, Jr., R. W.; Gervais, R. L.
Agenda item 11
Agenda item 11 CRD 3 JOINT FAO/WHO Food Standards Programme Codex Committee on Methods of analysis and Sampling 22nd Session Budapest, Hungary, 23-27 November 1998 REPORT OF THE 13TH INTERAGENCY MEETING (IAM-
Hot rocks
Four kilometers down below the orange earth of Australia�s Cooper Basin lies some of the hottest nonvolcanic rock in the world�rock that the geothermal industry had never seriously considered using to make electricity. But next month Geodynamics, an ...
S. Upson
Item Subject FAR Case
Federal Acquisition Circular (FAC) 2005-53 Item Subject FAR Case I. Equal Opportunity for Veterans 2009-007 II. Unique Procurement Instrument Identifier 2009-023 III. Uniform Suspension and Debarment Requirement 2009-036 IV. Extension of Sunset Date for Protests of Task and 2011-015 Delivery Orders V. Encouraging Contractor Policies to Ban Text Messaging 2009-028 While Driving. VI. TINA Interest Calculations 2009-034 Item I--Equal Opportunity for Veterans (FAR 2009-007) The interim rule, published September 29, 2010, is adopted as final with minor changes. A definition from the clause at FAR 52.222-35 for ``executive and senior management'' is added to FAR subpart 22.13. The interim rule implemented Department of
Microsoft Word - config item
CITSS Configurable Item List CITSS Configurable Item List COTS Software CITSS Configurable Items Page 1 January 1998 CI # CITSS Function Vendor/Version Install Date Location Description/Notes SW-001 Data Base Server Operating System DEC Unix 4.0a 12/05/97 G'tn CA-001 SW-002 Application Server Operating System Novell 3.12 (250 User License) 10/01/97 G'tn C-065A SW-003 Relational Data Base System Oracle 7.3.3 for Unix 4.0a 12/05/97 G'tn CA-001 SW-004 Report Generation Tool Crystal Reports Professional 5.0 10/01/97 QO 370 SW-005 Paging Software WinBeep 2.12 10/01/97 QO 370 SW-006 Help Desk Software Applix Enterprise 6.01 10/01/97 G'tn C-065A SW-007 Web Enabling Software Applix WebLink 1.2.3 12/01/97 QO 370 SW-008 Knowledge Base Software ServiceWare, Inc. Knowledge Paks,
Self-Assign Items Self-Assign Items © 2011 SuccessFactors, Inc. - 1 - SuccessFactors Learning Confidential. All rights reserved. Job Aid: Self-Assign Items Purpose The purpose of this job aid is to guide users through the step-by-step process of using the catalog to locate and assign items to their To-Do List. Each task demonstrates a different method of searching the catalog. Task A. Locate and Self-Assign Items Using Simple Catalog Search Navigate to the Catalog search box above Easy Links. Enter keywords to search for in the item's title and description. Click the Search icon ( ). 2 1 3 Locate and Self-Assign Items Using Simple Catalog Search - 4 Steps Task A Locate and Self-Assign Items Using Advance Catalog Search - 7 Steps Task B
Natural Gas Balancing Item (Annual Supply & Disposition)
Monthly Annual Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2007 2008 2009 2010 2011 2012 View History U.S. -196,323 33,472 -89,392 124,358 -130,108 -152,364 1998-2012 Alabama 77,309 1,335 -25,228 -63,751 -55,703 -162,223 1997-2012 Alaska 11,210 6,947 -1,355 10,021 17,185 22,663 1997-2012 Arizona 3,165 17,478 -15,825 -20,750 -18,162 -13,236 1997-2012 Arkansas -3,315 -1,962 18,740 9,425 -685 -18,281 1997-2012 California -4,218 -31,462 11,407 113,773 70,634 104,820 1997-2012 Colorado 97,841 37,174 -74,152 -77,449 -75,397 -107,940 1997-2012 Connecticut -8,972 -24,011 -25,959 -6,645 3,976 4,191 1997-2012
-196,323 33,472 -89,392 124,358 -130,108 -152,364 1998-2012 -196,323 33,472 -89,392 124,358 -130,108 -152,364 1998-2012 Alabama 77,309 1,335 -25,228 -63,751 -55,703 -162,223 1997-2012 Alaska 11,210 6,947 -1,355 10,021 17,185 22,663 1997-2012 Arizona 3,165 17,478 -15,825 -20,750 -18,162 -13,236 1997-2012 Arkansas -3,315 -1,962 18,740 9,425 -685 -18,281 1997-2012 California -4,218 -31,462 11,407 113,773 70,634 104,820 1997-2012 Colorado 97,841 37,174 -74,152 -77,449 -75,397 -107,940 1997-2012 Connecticut -8,972 -24,011 -25,959 -6,645 3,976 4,191 1997-2012 Delaware 3,485 1,692 11,652 3,249 7,362 21,035 1997-2012 District of Columbia -599 -843 -751 -446 1,846 497 1997-2012 Florida 592 486 -8,894 2,909 -5,753 15,168 1997-2012 Georgia 168 -4,782 1,543 -5,204 -29,448 -36,487 1997-2012
New York Natural Gas Balancing Item (Million Cubic Feet)
-65,420 -60,838 -107,489 -49,095 -117,265 -57,852 -145,642 -90,675 -51,097 2010's -61,456 -96,881 - No Data Reported; -- Not Applicable; NA Not Available; W Withheld to...
Suspect/Counterfeit and Defective Items
Items Home SuspectCounterfeit Items Defective Items Safety Advisories Safety Alerts Safety Bulletins SCI Points of Contact SCI Studies References Topical Search SCI-DI...
SF 6432-CI Commercial Items
or alcoholic beverages while on the premises; Control : SF 6432-CI Title: Standard Terms and Conditions for Commercial Items Owner: Procurement Policy & Quality Dept Release...
Balanced diet
Balanced diet Balanced diet Name: Wildman Jackson Location: N/A Country: N/A Date: N/A Question: I have seen on cereal boxes that 1 serving gives about 4-8% of some important vitamins. With a good diet (milk, vegetables, breads) am I getting 100% of all necessary vitamins every day? Should I really be concerned about vitamins like Zinc, Copper, etc.? I'm a male, so take that into consideration. Thanks. Replies: If you are indeed eating a well balanced diet, heavy on the fruits, veggies and cereals, you're probably getting the vitamins you need. The minerals (zinc, copper, etc) are also probably in your diet naturally. Different foods contain different nutrients; the catch is to be certain that you're getting enough variety. Especially during this time in your life when you're very actively growing, you need lots of things to be replenished regularly.
Action Item Review and Status
Waste Corporate Board Waste Corporate Board Action Items Action Item Resolution Action Item Strategic Planning Initiative Optimization Study Resolution Presentation by S. Schneider (HLW System Integrated Project Team) Pretreatment Whitepaper Presentation by W. Wilmarth (Role of Liquid Waste Pretreatment Technologies in Solving the DOE Clean-up Mission) Draft Charter for Performance Assessment Sub-Committee Presentation by J. Marra (Performance Assessment Community of Practice) Final Report from Slurry Transport Workshop In final stages of review and Approval; will be distributed when complete This document is intended for planning and analysis purposes, assuming a continuing constrained budget environment. Every effort will be made to comply with all applicable environmental and legal obligations,
Balanced Scorecard
3 3 ISSUED: August 30, 2012 LEARNING AND GROWTH - Employee Satisfaction - Employee Alignment FINANCIAL - Optimum Cost Efficiency of Purchasing Operations - Financial Contributions of Procurement via Cost Savings MISSION VISION STRATEGY CUSTOMER - Customer Satisfaction INTERNAL BUSINESS PROCESSES - Effective Internal Controls - Effective Supplier Management - Use of Effective Competition - Effective Utilization of Alternate Procurement Approaches - Acquisition Process - Good Corporate Citizenship through Purchasing BALANCED SCORECARD PERSPECTIVES AND OBJECTIVES 2 MISSION To provide acquisition and assistance services to support accomplishment of the Department's
1 1 ISSUED: Aug 17, 2010 MISSION To provide acquisition and assistance services to support accomplishment of the Department's programmatic goals and objectives. STRATEGY To develop and maintain an organizational culture, management systems, and line processes in the acquisition system that ensure a focus on results while emphasizing integrity, fairness, competition, openness, and efficiency. VISION To deliver on a timely basis the best value product or service to our customers while maintaining the public's trust and fulfilling public policy objectives. 2 BALANCED SCORECARD STRATEGIC PERSPECTIVES MISSION VISION STRATEGY LEARNING AND GROWTH CUSTOMER FINANCIAL INTERNAL BUSINESS PROCESSES
1 1 ISSUED: August 17, 2010 LEARNING AND GROWTH - Employee Satisfaction - Employee Alignment FINANCIAL - Optimum Cost Efficiency of Purchasing Operations MISSION VISION STRATEGY CUSTOMER - Customer Satisfaction INTERNAL BUSINESS PROCESSES - Effective Internal Controls - Effective Supplier Management - Use of Effective Competition - Effective Utilization of Alternate Procurement Approaches - Acquisition Process - Good Corporate Citizenship through Purchasing BALANCED SCORECARD PERSPECTIVES AND OBJECTIVES 2 MISSION To provide acquisition and assistance services to support accomplishment of the Department's programmatic goals and objectives. STRATEGY To develop and maintain an organizational culture, management systems, and line processes in the
Shaft balancing
SciTech Connect
A gas turbine engine has an internal drive shaft including one end connected to a driven load and an opposite end connected to a turbine wheel and wherein the shaft has an in situ adjustable balance system near the critical center of a bearing span for the shaft including two 360.degree. rings piloted on the outer diameter of the shaft at a point accessible through an internal engine panel; each of the rings has a small amount of material removed from its periphery whereby both of the rings are precisely unbalanced an equivalent amount; the rings are locked circumferentially together by radial serrations thereon; numbered tangs on the outside diameter of each ring identify the circumferential location of unbalance once the rings are locked together; an aft ring of the pair of rings has a spline on its inside diameter that mates with a like spline on the shaft to lock the entire assembly together.
Irwin, John A. (Greenwood, IN)
Breakout Items Action Items Fixed Price Contracting Topic Group Summaries
Albuquerque Meeting - July 1997 Albuquerque Meeting - July 1997 Breakout Items Action Items Fixed Price Contracting Topic Group Summaries TOPIC GROUP SUMMARIES Routing * Group reviewed and approved fourth draft of working paper "Routing Issues Related to U.S. Department of Energy Radioactive Materials Transportation: Discussion and Analysis" * Group submitted working paper and draft list of "Stakeholder Recommendations" to TEC/WG and DOE Group reached consensus on three major routing-related issues: * DOE should develop standardized, cooperative approach to route selection * DOE needs to involve all stakeholders * DOE should submit final version of Group's working paper to other federal entities Future topics for consideration: * routing issues relevant to tribal entities and local jurisdictions
Energy.gov (U.S. Department of Energy (DOE))
In this jobaid you will learn to use the Course Catalog, Browse Catalog, Recommended Items, Locate and Self-Assign Items (Courses) Using the Search Catalog features, Narrow Course Searches using...
Measuring Student Learning With Item Response Theory
E-Print Network (OSTI)
We investigate short-term learning from hints and feedback in a Web-based physics tutoring system. Both the skill of students and the difficulty and discrimination of items were determined by applying item response theory ...
Lee, Young-Jin
Abstract: Natural regeneration on waste rock was investigated at the old Wangaloa coal mine, south-east Otago. A 450-m long waste rock stack had been created 40�50 years ago, and has had little anthropogenic intervention since. The stack is made up of a gradient of three main waste rock types, defined as �silt-rich�, �mixed�, and �quartz-rich�, which reflect different proportions of loess siltstone and quartz gravel conglomerate. Plant species assemblages were quantified in four 5-m 2 quadrats in each waste rock type. Invertebrates were heat extracted from substrate cores (7 cm diameter; depth 5 cm) collected from quadrats over an eight-week period in spring 2003. Ordination analysis showed statistically distinct plant and invertebrate assemblages had arisen on each waste rock type. Revegetation patterns were dominated by native, woody individuals on all waste rock types, particularly manuka (Leptospermum scoparium) and kanuka (Kunzea ericoides). Plant cover on �silt-rich � waste rock was four-fold that on �quartz-rich � waste rock. Total numbers of invertebrates were highest on �quartz-rich� waste rock, but richness greatest on �silt-rich � waste rock. Collembola dominated the fauna but their numbers were proportionally greatest in poorly vegetated areas. Further work is required to explain the absence of plants and invertebrates from local areas of waste rock. ___________________________________________________________________________________________________________________________________
C. G. Rufaut; S. Hammit; D. Craw; S. G. Clearwater
New technologies for item monitoring
This report responds to the Department of Energy`s request that Sandia National Laboratories compare existing technologies against several advanced technologies as they apply to DOE needs to monitor the movement of material, weapons, or personnel for safety and security programs. The authors describe several material control systems, discuss their technologies, suggest possible applications, discuss assets and limitations, and project costs for each system. The following systems are described: WATCH system (Wireless Alarm Transmission of Container Handling); Tag system (an electrostatic proximity sensor); PANTRAK system (Personnel And Material Tracking); VRIS (Vault Remote Inventory System); VSIS (Vault Safety and Inventory System); AIMS (Authenticated Item Monitoring System); EIVS (Experimental Inventory Verification System); Metrox system (canister monitoring system); TCATS (Target Cueing And Tracking System); LGVSS (Light Grid Vault Surveillance System); CSS (Container Safeguards System); SAMMS (Security Alarm and Material Monitoring System); FOIDS (Fiber Optic Intelligence & Detection System); GRADS (Graded Radiation Detection System); and PINPAL (Physical Inventory Pallet).
Abbott, J.A. [EG & G Energy Measurements, Albuquerque, NM (United States); Waddoups, I.G. [Sandia National Labs., Albuquerque, NM (United States)
Toys and Items Brought from Home
... child wants to bring in a toy from home, please adhere to the following procedures. Do not send in any items of great sentimental or monetary value. ...
District, Teller County, Colorado," U.S. Geol. Survey Bull.Jamestown District, Colorado," Econ. Geol. , v. 68, pp 1247-Rocks at Powderhorn, Colorado; Economic Geology, Vol. 60,
Murphy, M.
Session: Hard Rock Penetration
This session at the Geothermal Energy Program Review X: Geothermal Energy and the Utility Market consisted of five presentations: ''Hard Rock Penetration - Summary'' by George P. Tennyson, Jr.; ''Overview - Hard Rock Penetration'' by James C. Dunn; ''An Overview of Acoustic Telemetry'' by Douglas S. Drumheller; ''Lost Circulation Technology Development Status'' by David A. Glowka; ''Downhole Memory-Logging Tools'' by Peter Lysne.
Tennyson, George P. Jr.; Dunn, James C.; Drumheller, Douglas S.; Glowka, David A.; Lysne, Peter
Clustering local frequency items in multiple databases
Frequent items could be considered as a basic type of patterns in a database. In the context of multiple data sources, most of the global patterns are based on local frequency items. A multi-branch company transacting from different branches often needs ... Keywords: Association, Clustering, Data mining, Measure of association, Multi-database mining
Animesh Adhikari
Polarization-balanced beamsplitter
DOE Patents (OSTI)
A beamsplitter assembly that includes several beamsplitter cubes arranged to define a plurality of polarization-balanced light paths. Each polarization-balanced light path contains one or more balanced pairs of light paths, where each balanced pair of light paths includes either two transmission light paths with orthogonal polarization effects or two reflection light paths with orthogonal polarization effects. The orthogonal pairing of said transmission and reflection light paths cancels polarization effects otherwise caused by beamsplitting.
Decker, Derek E. (Livermore, CA)
Periodic load balancing
Multiprocessor load balancing aims to improve performance by moving jobs from highly loaded processors to more lightly loaded processors. Some schemes allow only migration of new jobs upon arrival, while other schemes allow migration of ... Keywords: heavy traffic diffusion approximations, load balancing, periodic load balancing, reflected Brownian motion, resource sharing, transient behavior
G�sli Hj�lmt�sson; Ward Whitt
Rock-ravintolatoiminta : el�v�� rock-musiikkia ravintolaymp�rist�ss�; Rock venue activity : live rock music in the restaurant setting.
??Ty�n tavoitteena oli tutkia rock-ravintolatoimintaa ja el�v�� rock-musiikkia ravintolaymp�rist�ss� ravintolan, artistin ja asiakkaan n�k�kulmasta. Tutkimuksessa pyrittiin selvitt�m��n rock-ravintolayritt�misen toimintatapoja ja kartoittamaan alan t�m�n hetkist� tilaa.� (more)
V�yli�, Jari
Balance Energy | Open Energy Information
Open Energy Info (EERE)
Balance Energy is a company located in San Diego, California . References "Balance Energy" Retrieved from "http:en.openei.orgwindex.php?titleBalanceEnergy&oldid342509...
Oldest Rock on Earth
Canada." and "Some of the oldest surface rock can be found in the Canadian Shield, Australia, Africa and in other more specific places around the world. The ages of...
Plant Support Engineering: Counterfeit and Fraudulent Items
In today's global marketplace, an increasing percentage of our spare and replacement items (and their contents) originates outside the United States. Enormous growth in the manufacturing capabilities of regions such as Asia has resulted in an increase in the number of fraudulent and counterfeit items. We frequently hear of examples such as baby formula, dog food, lead paint in toys, etc. An increasing number of more industrial examples such as tools, structural steel, bearings, and electronics are also b...
Calorimetry of low mass Pu239 items
Calorimetric assay has the reputation of providing the highest precision and accuracy of all nondestructive assay measurements. Unfortunately, non-destructive assay practitioners and measurement consumers often extend, inappropriately, the high precision and accuracy of calorimetric assay to very low mass items. One purpose of this document is to present more realistic expectations for the random uncertainties associated with calorimetric assay for weapons grade plutonium items with masses of 200 grams or less.
Cremers, Teresa L [Los Alamos National Laboratory; Sampson, Thomas E [Los Alamos National Laboratory
Beyond Beginning Balances Presentation
National Nuclear Security Administration (NNSA)
Beyond Beginning Balances Peter Dessaules DOESO-62 Obligations Accounting Implementation Workshop Obligations Accounting Implementation Workshop January 13, 2004 January 13, 2004...
A question of balance
Nature seeks a balance. The global carbon cycle, in which carbon is exchanged between the atmosphere, biosphere, and oceans through natural processes such as absorption, photosynthesis, and respiration, is one of those balances. This constant exchange promotes an equilibrium in which atmospheric carbon dioxide is keep relatively steady over long periods of time. For the last 10,000 years, up to the 19th century, the global carbon cycle has maintained atmospheric concentrations of carbon dioxide between 260 and 290 ppm. This article discusses the disturbance of the balance, how ethanol fuels address the carbon dioxide imbalance, and a bioethanol strategy.
Cook, G.; Brown, H.; Strawn, N.
Rock Harbor UNITED STATES
Passage Conglomerate Bay Five Finger Bay Lane Cove Stockly Bay Lake Ojibway Siskiwit River Creek Little River Washington Moskey M cCargoe Cove Robinson Bay Amygdaloid Channel Pickerel Cove Chippewa Harbor Crystal Cove Belle Isle Canoe Rocks Caribou Island Saginaw Point Tookers Island The Palisades Raspberry
The Balancing Act
This essay is being proposed as part of a book titled: "Motherhood: The Elephant in the Laboratory." It offers professional and personal advice on how to balance working in the research field with a family life.
Fowler, Kimberly M.
The Landscape of Klamath Basin Rock Art
the Lines: Ethnographic Sources and Rock Art Interpretationwhen applying these sources toward rock art interpretation.information source for developing rock art interpretations.
David, Robert James
Microwave assisted hard rock cutting
An apparatus for the sequential fracturing and cutting of subsurface volume of hard rock (102) in the strata (101) of a mining environment (100) by subjecting the volume of rock to a beam (25) of microwave energy to fracture the subsurface volume of rock by differential expansion; and , then bringing the cutting edge (52) of a piece of conventional mining machinery (50) into contact with the fractured rock (102).
Lindroth, David P. (Apple Valley, MN); Morrell, Roger J. (Bloomington, MN); Blair, James R. (Inver Grove Heights, MN)
Lithium Balance | Open Energy Information
navigation, search Name Lithium Balance Place Copenhagen, Denmark Product Lithium ion battery developer. References Lithium Balance1 LinkedIn Connections CrunchBase Profile No...
Session: Hot Dry Rock
This session at the Geothermal Energy Program Review X: Geothermal Energy and the Utility Market consisted of four presentations: ''Hot Dry Rock - Summary'' by George P. Tennyson, Jr.; ''HDR Opportunities and Challenges Beyond the Long Term Flow Test'' by David V. Duchane; ''Start-Up Operations at the Fenton Hill HDR Pilot Plant'' by Raymond F. Ponden; and ''Update on the Long-Term Flow Testing Program'' by Donald W. Brown.
Tennyson, George P. Jr.; Duchane, David V.; Ponden, Raymond F.; Brown, Donald W.
Energy Balance Energy Balance for Dynamic Contact with
Background Energy Balance Energy Balance for Dynamic Contact with Signorini's Condition and Slip Atlantic Regional Conference on Dierential Equations October 20, 2007 Ted Wendt Energy Balance for Dynamic Contact #12;Background Energy Balance Outline 1 Background Classical Formulation Spaces and Notation Weak
Wendt, Ted
Definition: Rock Density | Open Energy Information
in crustal rocks. Rock density is a physical characteristic that is governed by the chemical composition (in situ minerals) and pore spaces of a specific rock or rock type.1...
SOLICITATION/CONTRACT/ORDER FOR COMMERCIAL ITEMS SOLICITATION/CONTRACT/ORDER FOR COMMERCIAL ITEMS OFFEROR TO COMPLETE BLOCKS 12, 17, 23, 24, & 30 1. REQUISITION NUMBER SP0600-06-0525 PAGE 1 OF 19 2. CONTRACT NUMBER 3. AWARD/EFFECTIVE DATE 4. ORDER NUMBER 5. SOLICITATION NUMBER SP0600-06-Q-0408 6. SOLICITATION ISSUE DATE March 8, 2006 7. FOR SOLICITATION INFORMATION CALL: a.NAME Leslie Simpson (703) 767-8536 b. TELEPHONE NUMBER (no collect calls) Phone: See Block 7A Fax: (703) 767-8757 8. OFFER DUE DATE/LOCAL TIME March 15, 2006, 12:00 Noon, Local Time, Fort Belvoir, Virginia 9. ISSUED BY CODE SP0600 10. THIS ACQUISITION IS UNRESTRICTED ⌧ SET ASIDE 100 % FOR
Work/Life Balance
Work/Life Balance Work/Life Balance /careers/_assets/images/careers-icon.jpg Work/Life Balance Explore the multiple dimensions of a career at LANL: work with the best minds on the planet in an inclusive environment that is rich in intellectual vitality and opportunities for growth. What our employees say: Health & Wellness "The Lab pays 80 percent of my family's medical premiums with Blue Cross Blue Shield of New Mexico." Retirement & Savings "With the Lab matching my 401K contributions of six percent, I'm making good progress in saving for my retirement." Time Off "Like many of my colleagues here, I work nine hours on most work days so that I can take every other Friday off." Tax Savings "My flexible spending accounts allow me to set aside pre-tax dollars for
Balanced fuzzy sets
The paper presents a new approach to fuzzy sets and uncertain information based on an observation of asymmetry of classical fuzzy operators. Parallel is drawn between symmetry and negativity of uncertain information. The hypothesis is raised that classical ... Keywords: Balanced norms, Fuzzy sets, Membership functions, Negative information, Triangular norms, Uninorms and nullnorms
W?adys?aw Homenda
Multidimensional spectral load balancing
A method of and apparatus for graph partitioning involving the use of a plurality of eigenvectors of the Laplacian matrix of the graph of the problem for which load balancing is desired. The invention is particularly useful for optimizing parallel computer processing of a problem and for minimizing total pathway lengths of integrated circuits in the design stage.
Hendrickson, Bruce A. (Albuquerque, NM); Leland, Robert W. (Albuquerque, NM)
Rock Sampling | Open Energy Information
Rock Sampling Rock Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Rock Sampling Details Activities (13) Areas (13) Regions (1) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Field Sampling Information Provided by Technique Lithology: Rock samples are used to define lithology. Field and lab analyses can be used to measure the chemical and isotopic constituents of rock samples. Stratigraphic/Structural: Provides information about the time and environment which formed a particular geologic unit. Microscopic rock textures can be used to estimate the history of stress and strain, and/or faulting. Hydrological: Isotope geochemistry can reveal fluid circulation of a geothermal system.
Overview: Hard Rock Penetration
The Hard Rock Penetration program is developing technology to reduce the costs of drilling and completing geothermal wells. Current projects include: lost circulation control, rock penetration mechanics, instrumentation, and industry/DOE cost shared projects of the Geothermal Drilling organization. Last year, a number of accomplishments were achieved in each of these areas. A new flow meter being developed to accurately measure drilling fluid outflow was tested extensively during Long Valley drilling. Results show that this meter is rugged, reliable, and can provide useful measurements of small differences in fluid inflow and outflow rates. By providing early indications of fluid gain or loss, improved control of blow-out and lost circulation problems during geothermal drilling can be expected. In the area of downhole tools for lost circulation control, the concept of a downhole injector for injecting a two-component, fast-setting cementitious mud was developed. DOE filed a patent application for this concept during FY 91. The design criteria for a high-temperature potassium, uranium, thorium logging tool featuring a downhole data storage computer were established, and a request for proposals was submitted to tool development companies. The fundamental theory of acoustic telemetry in drill strings was significantly advanced through field experimentation and analysis. A new understanding of energy loss mechanisms was developed.
Dunn, J.C.
Overview - Hard Rock Penetration
The Hard Rock Penetration program is developing technology to reduce the costs of drilling and completing geothermal wells. Current projects include: lost circulation control, rock penetration mechanics, instrumentation, and industry/DOE cost shared projects of the Geothermal Drilling Organization. Last year, a number of accomplishments were achieved in each of these areas. A new flow meter being developed to accurately measure drilling fluid outflow was tested extensively during Long Valley drilling. Results show that this meter is rugged, reliable, and can provide useful measurements of small differences in fluid inflow and outflow rates. By providing early indications of fluid gain or loss, improved control of blow-out and lost circulation problems during geothermal drilling can be expected. In the area of downhole tools for lost circulation control, the concept of a downhole injector for injecting a two-component, fast-setting cementitious mud was developed. DOE filed a patent application for this concept during FY 91. The design criteria for a high-temperature potassium, uranium, thorium logging tool featuring a downhole data storage computer were established, and a request for proposals was submitted to tool development companies. The fundamental theory of acoustic telemetry in drill strings was significantly advanced through field experimentation and analysis. A new understanding of energy loss mechanisms was developed.
Dunn, James C.
Hot Dry Rock Overview at Los Alamos
The Hot Dry Rock (HDR) geothermal energy program is a renewable energy program that can contribute significantly to the nation's balanced and diversified energy mix. Having extracted energy from the first Fenton Hill HDR reservoir for about 400 days, and from the second reservoir for 30 days in a preliminary test, Los Alamos is focusing on the Long Term Flow Test and reservoir studies. Current budget limitations have slowed preparations thus delaying the start date of that test. The test is planned to gather data for more definitive reservoir modeling with energy availability or reservoir lifetime of primary interest. Other salient information will address geochemistry and tracer studies, microseismic response, water requirements and flow impedance which relates directly to pumping power requirements. During this year of ''preparation'' we have made progress in modeling studies, in chemically reactive tracer techniques, in improvements in acoustic or microseismic event analysis.
Berger, Michael; Hendron, Robert H.
West Valley Demonstration Project 10282 Rock Springs Road
West Valley Demonstration Project West Valley Demonstration Project 10282 Rock Springs Road West Valley, NY 141 71 -9799 Mr. Daniel W. Coyne President & General Manager CH2M HILL B&W West Valley, LLC West Valley Demonstration Project 10282 Rock Springs Road West Valley, NY 141 71 -9799 ATTENTION: J. D. Rendall, Regulatory Strategy, AC-EA SUBJECT: Environmental Checklist WVDP-20 12-0 1, " WVDP Reservoir Interconnecting Canal Maintenance Activities" REFERENCE: Letter WD:2012:0409 (357953), D. W. Coyne to R. W. Reffner, "CONTRACT NO. DE-EM000 1529, Section 5-3, Item 105, NEPA Documentation (Transmittal of Environmental Checklist WVDP-20 12-0 1, WVDP Reservoir Interconnecting Canal Maintenance Activities), Revision 1 ," dated July 24, 20 12 Dear Mr. Coyne:
Prehistoric Rock Structures of the Idaho National Laboratory
Over the past 13,500 years, human populations have lived in and productively utilized the natural resources offered by the cold desert environment of the northeastern Snake River Plain in eastern Idaho. Within an overall framework of hunting and gathering, groups relied on an intimate familiarity with the natural world and developed a variety of technologies to extract the resources that they needed to survive. Useful items were abundant and found everywhere on the landscape. Even the basaltic terrain and the rocks, themselves, were put to productive use. This paper presents a preliminary classification scheme for rock structures built on the Idaho National Laboratory landscape by prehistoric aboriginal populations, including discussions of the overall architecture of the structures, associated artifact assemblages, and topographic placement. Adopting an ecological perspective, the paper concludes with a discussion of the possible functions of these unique resources for the desert populations that once called the INL home.
Brenda R Pace
Guide to good practices for the development of test items
While the methodology used in developing test items can vary significantly, to ensure quality examinations, test items should be developed systematically. Test design and development is discussed in the DOE Guide to Good Practices for Design, Development, and Implementation of Examinations. This guide is intended to be a supplement by providing more detailed guidance on the development of specific test items. This guide addresses the development of written examination test items primarily. However, many of the concepts also apply to oral examinations, both in the classroom and on the job. This guide is intended to be used as guidance for the classroom and laboratory instructor or curriculum developer responsible for the construction of individual test items. This document focuses on written test items, but includes information relative to open-reference (open book) examination test items, as well. These test items have been categorized as short-answer, multiple-choice, or essay. Each test item format is described, examples are provided, and a procedure for development is included. The appendices provide examples for writing test items, a test item development form, and examples of various test item formats.
Energy from hot dry rock
The Hot Dry Rock Geothermal Energy Program is described. The system, operation, results, development program, environmental implications, resource, economics, and future plans are discussed. (MHR)
Hendron, R.H.
Rock Art in the Public Trust: Managing Prehistoric Rock Art on Federal Land
Archaic North America. ? In Handbook of Rock Art Research,Rock Art Analysis. ? In Handbook of Archaeological Methods,Rock Art Analysis,? in Handbook of Archaeological Methods,
Hale, John Patrick
Feed mechanism and method for feeding minute items
A feeding mechanism and method for feeding minute items, such as capacitors, resistors, or solder preforms. The mechanism is adapted to receive a plurality of the randomly-positioned and randomly-oriented extremely small or minute items, and to isolate, orient, and position the items in a specific repeatable pickup location wherefrom they may be removed for use by, for example, a computer-controlled automated assembly machine. The mechanism comprises a sliding shelf adapted to receive and support the items; a wiper arm adapted to achieve a single even layer of the items; and a pushing arm adapted to push the items into the pickup location. The mechanism can be adapted for providing the items with a more exact orientation, and can also be adapted for use in a liquid environment.
Stringer, Timothy Kent; Yerganian, Simon Scott
Workshop on hydrology of crystalline basement rocks
This workshop covered the following subjects: measurements in relatively shallow boreholes; measurement and interpretation of data from deep boreholes; hydrologic properties of crystalline rocks as interpreted by geophysics and field geology; rock mechanics related to hydrology of crystalline rocks; the possible contributions of modeling to the understanding of the hydrology of crystalline rocks; and geochemical interpretations of the hydrology of crystalline rocks. (MHR)
Davis, S.N. (comp.)
Definition: Balancing Authority Area | Open Energy Information
The Balancing Authority maintains loadresource balance within this area.1 Related Terms transmission lines, Balancing Authority, transmission line, smart grid References ...
Shotgun cartridge rock breaker
A rock breaker uses shotgun cartridges or other firearm ammunition as the explosive charge at the bottom of a drilled borehole. The breaker includes a heavy steel rod or bar, a gun with a firing chamber for the ammunition which screws onto the rod, a long firing pin running through a central passage in the rod, and a firing trigger mechanism at the external end of the bar which strikes the firing pin to fire the cartridge within the borehole. A tubular sleeve surround the main body of the rod and includes slits the end to allow it to expand. The rod has a conical taper at the internal end against which the end of the sleeve expands when the sleeve is forced along the rod toward the taper by a nut threaded onto the external end of the rod. As the sleeve end expands, it pushes against the borehole and holds the explosive gasses within, and also prevents the breaker from flying out of the borehole. The trigger mechanism includes a hammer with a slot and a hole for accepting a drawbar or drawpin which, when pulled by a long cord, allows the cartridge to be fired from a remote location.
Ruzzi, Peter L. (Eagan, NM); Morrell, Roger J. (Bloomington, MN)
GSA Data Repository item 0000 Supplemental data for
GSA Data Repository item 0000 Supplemental data for Exhumation History of the Alam Kuh Area Data Repository item 0000 Item PDF file name U-Pb data table for Akapol zircon samples (97AK101, 97AK102, and 19-12-1) Akapol_zircon_data.PDF U-Pb data table for Alam Kuh zircon samples (19-29-1) Alam_Kuh_zircon_data
Harrison, Mark
Memory test time reduction by interconnecting test items
The idea is to interconnect test items to reuse memory states left from the previous test item for saving initialization and verification sequences. Meanwhile, signal settling time of the tester between two consecutive test items being applied can also ... Keywords: NP-hard problem, constraints, graph theory, initialization sequences, integer linear programming model, integer programming, integrated circuit testing, integrated memory circuits, interconnection problem, iterations, linear programming, memory test time reduction, rural Chinese postman problem, signal settling time, successive ILP models, test items interconnection, verification sequences
Wen-Jer Wu; Chuan Yi Tang
SF6432-CI (02-01-12) Commercial Items
who will enter a government site to perform Control : SF 6432-CI Title: Standard Terms and Conditions for Commercial Items Owner: Procurement Policy & Quality Dept Release...
Suspect and Counterfeit Items Memo | Department of Energy
(SCI), specifically electronic components and integrated circuits, is an increasing problem throughout the nuclear industry. Suspect and Counterfeit Items Memo More Documents...
Post Rock | Open Energy Information
Rock Rock Jump to: navigation, search Name Post Rock Facility Post Rock Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Wind Capital Group Developer Wind Capital Group Energy Purchaser Westar Energy Location Ellsworth KS Coordinates 38.87269233°, -98.33059788° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.87269233,"lon":-98.33059788,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Rock Density | Open Energy Information
form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Rock Density Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Rock Density Details Activities (2) Areas (2) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Lab Analysis Techniques Exploration Sub Group: Rock Lab Analysis Parent Exploration Technique: Rock Lab Analysis Information Provided by Technique Lithology: Density of different lithologic units. Stratigraphic/Structural: Hydrological: Thermal: Cost Information Low-End Estimate (USD): 10.001,000 centUSD 0.01 kUSD 1.0e-5 MUSD 1.0e-8 TUSD / sample
2 2 (08-98) Previous editions are obsolete. MANDATORY DATA COLLECTION AUTHORIZED BY 10 CFR 30, 40, 50, 70, 75, 150. Public Laws 83-703, 93-438, 95-91. U.S. DEPARTMENT OF ENERGY AND U.S. NUCLEAR REGULATORY COMMISSION MATERIAL BALANCE REPORT 18 U.S.C. SECTION 1001; ACT OF JUNE 25, 1948; 62 STAT. 749; MAKES IT A CRIMINAL OFFENSE TO MAKE A WILLFULLY FALSE STATEMENT OR REPRESENTATION TO ANY DEPARTMENT OR AGENCY OF THE UNITED STATES AS TO ANY MATTER WITHIN ITS JURISDICTION. Printed with soy ink on recycled paper OMB Control No. 1910-1800 OMB Burden Disclosure Statement on Reverse SECTION A 7. DOE/NRC 740M ATTACHED 8. BEGINNING INVENTORY - DOE OWNED 9. BEGINNING INVENTORY - NOT DOE OWNED RECEIPTS 11. PROCUREMENT FROM DOE FROM: 13. PROCUREMENT - FOR THE ACCOUNT OF DOE 14. DOD RETURNS - USE A 15. DOD RETURNS - USE B
Assessment of Water Balance Models
Power generating plants perform water balance studies for a variety of reasons, and they use a range of different modeling approaches and tools to accomplish their specific objectives. This EPRI report presents the results of a project conducted with the objective of providing the industry and the interested public with an assessment of the value of water balance models to conserve and manage water. The report provides an overview of the state-of-the-art water balance models and identifies ...
Dynamic load balancing of applications
An application-level method for dynamically maintaining global load balance on a parallel computer, particularly on massively parallel MIMD computers. Global load balancing is achieved by overlapping neighborhoods of processors, where each neighborhood performs local load balancing. The method supports a large class of finite element and finite difference based applications and provides an automatic element management system to which applications are easily integrated.
Wheat, Stephen R. (Albuquerque, NM)
An application-level method for dynamically maintaining global load balance on a parallel computer, particularly on massively parallel MIMD computers is disclosed. Global load balancing is achieved by overlapping neighborhoods of processors, where each neighborhood performs local load balancing. The method supports a large class of finite element and finite difference based applications and provides an automatic element management system to which applications are easily integrated. 13 figs.
Wheat, S.R.
Battery Balancing at Xtreme Power.
??Battery pack imbalance is one of the most pressing issues for companies involved in Battery Energy Storage. The importance of Battery Balancing with respect to� (more)
Ganesan, Rahul
Rock physics at Los Alamos Scientific Laboratory
Rock physics refers to the study of static and dynamic chemical and physical properties of rocks and to phenomenological investigations of rocks reacting to man-made forces such as stress waves and fluid injection. A bibliography of rock physics references written by LASL staff members is given. Listing is by surname of first author. (RWR)
Not Available
Hot Dry Rock - Summary
Hot Dry Rock adds a new flexibility to the utilization of geothermal energy. Almost always the approach has been to limit that utilization to places where there is a natural source of water associated with a source of heat. Actually, the result was that steam was mined. Clearly there are much larger heat resources available which lack natural water to transport that energy to the surface. Also, as is found in hydrothermal fields being mined for steam, the water supply finally gets used up. There is a strong motive in the existing capital investment to revitalize those resources. Techniques for introducing, recovering and utilizing the water necessary to recover the heat from below the surface of the earth is the subject of this session. Implicit in that utilization is the ability to forecast with reasonable accuracy the busbar cost of that energy to the utility industry. The added element of supplying the water introduces costs which must be recovered while still supplying energy which is competitive. Hot Dry Rock technology can supply energy. That has been proved long since. The basic barrier to its use by the utility industry has been and remains proof to the financial interests that the long term cost is competitive enough to warrant investment in a technology that is new to utility on-grid operations. As the opening speaker for this session states, the test that is underway will ''simulate the operations of a commercial facility in some ways, but it will not show that energy from HDR can be produced at a variety of locations with different geological settings''. Further, the Fenton Hill system is a research facility not designed for commercial production purposes, but it can give indications of how the system must be changed to provide economic HDR operations. And so it is that we must look beyond the long term flow test, at the opportunities and challenges. Proving that the huge HDR resources can be accessed on a worldwide scale must involve the construction of additional sites, preferably to the specifications of the now Federal geothermal community. These facilities will have to be engineered to produce and market energy at competitive prices. At the same time, we must not rest on our technological laurels, though they be many. Design and operational techniques have been conceived which could lead to improved economics and operations for HDR. These must be pursued and where merit is found, vigorously pursued. Accelerated research and development ought to include revolutionary drilling techniques, reservoir interrogation, and system modeling to assure the competitiveness and geographical diversity of applications of HDR. Much of this work will be applicable to the geothermal industry in general. More advanced research ought to include such innovations as the utilization of other operating fluids. Supercritical carbon dioxide and the ammonia/water (Kalina) cycle have been mentioned. But even as the near and more distant outlook is examined, today's work was reported in the HDR session. The start-up operations for the current test series at the Fenton Hill HDR Pilot Plant were described. The surface plant is complete and initial operations have begun. While some minor modifications to the system have been required, nothing of consequence has been found to impede operations. Reliability, together with the flexibility and control required for a research system were shown in the system design, and demonstrated by the preliminary results of the plant operations and equipment performance. Fundamental to the overall success of the HDR energy resource utilization is the ability to optimize the pressure/flow impedance/time relationships as the reservoir is worked. Significant new insights are still being developed out of the data which will substantially affect the operational techniques applied to new systems. However, again, these will have to be proved to be general and not solely specific to the Fenton Hill site. Nevertheless, high efficiency use of the reservoir without unintended reservoir grow
Tennyson, George P. Jr.
Isotopic Analysis- Rock | Open Energy Information
Isotopic Analysis- Rock Isotopic Analysis- Rock Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Isotopic Analysis- Rock Details Activities (13) Areas (11) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Lab Analysis Techniques Exploration Sub Group: Rock Lab Analysis Parent Exploration Technique: Rock Lab Analysis Information Provided by Technique Lithology: Water rock interaction Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Isotopic Analysis- Rock: Isotopes are atoms of the same element that have different numbers of neutrons. An isotopic analysis looks at a particular isotopic element(s) in a given system, while the conditions which increase/decrease the number of neutrons are well understood and measurable.
Par Pond water balance
A water budget for the Par Pond hydrologic system was established in order to estimate the rate of groundwater influx to Par Pond. This estimate will be used in modeling exercises to predict Par Pond reservoir elevation and spillway discharge in the scenario where Savannah River water is no longer pumped and discharged into Par Pond. The principal of conservation of mass was used to develop the water budget, where water inflow was set equal to water outflow. Components of the water budget were identified, and the flux associated with each was determined. The water budget was considered balanced when inflow and outflow summed to zero. The results of this study suggest that Par Pond gains water from the groundwater system in the upper reaches of the reservoir, but looses water to the groundwater system near the dam. The rate of flux of groundwater from the water table aquifer into Par Pond was determined to be 13 cfs. The rate of flux from Par Pond to the water table aquifer near the dam was determined to be 7 cfs.
Hiergesell, R.A.; Dixon, K.L.
Federal Acquisition Circular 2005-39 Item I--Extend Use of Simplified Acquisition Procedures for Certain Commercial Items (FAR
39 39 Item I--Extend Use of Simplified Acquisition Procedures for Certain Commercial Items (FAR Case 2009-035) This final rule amends the FAR to implement section 81 6 of the National Defense Authorization Act (NDAA) for Fiscal Year (FY) 201 0. The rule extends for two more years the commercial items test program in FAR subpart 13.5. The program was to expire January 1, 2010. Item 11--Clarification of Submission of Cost or Pricing Data on Non-Commercial Modifications of Commercial Items (FAR Case 2008-0 12) This final rule adopts, with minor changes, the interim rule published in the Federal Register at 74 FR 1 1826 on March 19,2009. The interim rule amended the FAR to implement section 8 14 of the NDAA for FY 2008. Section 8 14 requires the harmonization of the threshold for cost
Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field...
Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field Investigations Of In Situ...
Rock Lab Analysis | Open Energy Information
Rock Lab Analysis Rock Lab Analysis Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Rock Lab Analysis Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Lab Analysis Techniques Exploration Sub Group: Rock Lab Analysis Parent Exploration Technique: Lab Analysis Techniques Information Provided by Technique Lithology: Core and cuttings analysis is done to define lithology. Water rock interaction. Can determine detailed information about rock composition and morphology. Density of different lithologic units. Rapid and unambiguous identification of unknown minerals.[1] Stratigraphic/Structural: Core analysis can locate faults or fracture networks. Oriented core can give additional important information on anisotropy. Historic structure and deformation of land.
In today's globalized economy, we cannot live without imported products. Most people do not realize how thin the safety net of regulation and inspection really is. Less than three percent of imported products receive any form of government inspection prior to sale. Avoid flea markets, street vendors and deep discount stores. The sellers of counterfeit wares know where to market their products. They look for individuals who are hungry for a brand name item but do not want to pay a brand name price for it. The internet provides anonymity to the sellers of counterfeit products. Unlike Europe, U.S. law does not hold internet-marketing organizations, responsible for the quality of the products sold on their websites. These organizations will remove an individual vendor when a sufficient number of complaints are lodged, but they will not take responsibility for the counterfeit products you may have purchased. EBay has a number of counterfeit product guides to help you avoid being a victim of the sellers of these products. Ten percent of all medications taken worldwide are counterfeit. If you do buy medications on-line, be sure that the National Association of Boards of Pharmacy Verified Internet Pharmacy Practice Sites (VIPPS) recommends the pharmacy you choose to use. Inspect all medication purchases and report any change in color, shape, imprinting or odor to your pharmacist. If you take generic medications these attributes may change from one manufacturer to another. Your pharmacist should inform you of any changes when you refill your prescription. If they do not, get clarification prior to taking the medication. Please note that the Federal Drug Administration (FDA) does not regulate supplements. The FDA only steps in when a specific supplement proves to cause physical harm or contains a regulated ingredient. Due to counterfeiting, Underwriters Laboratories (UL) changed their label design three times since 1996. The new gold label should be attached to the cord or body of most office and home electrical products (please see the picture to the left). Holiday lights may have the UL marking in red or green instead of the universal black. A red UL mark indicates the product is approved for outdoor as well as indoor service. The green UL mark indicates the product is only to be used indoors. A small number of home electrical products may bear an Interteck (ETL) approval. This label is also acceptable. An Interteck label includes black print on a white background bearing the circular ETL logo. Most manufacturers are proud of their products and strive to gain name recognition as well as foster repeat business. This is not true of counterfeiters. The very first thing most counterfeiters try to do is make their products untraceable. Their products may bear the nation of origin but that is all. This is a common practice with metal components such as pipe fittings and flanges. This is also true of hoisting and rigging equipment such as shackles, turnbuckles and chain. Sadly, this has also occurred with the purchase of some safety equipment such as arc-flash retardant coveralls. Learn the national standards associated with products you are purchasing. Clearly specify these requirements on the procurements you make.
Oxygenate Supply/Demand Balances
Oxygenate Supply/Demand Oxygenate Supply/Demand Balances in the Short-Term Integrated Forecasting Model By Tancred C.M. Lidderdale This article first appeared in the Short-Term Energy Outlook Annual Supplement 1995, Energy Information Administration, DOE/EIA-0202(95) (Washington, DC, July 1995), pp. 33-42, 83-85. The regression results and historical data for production, inventories, and imports have been updated in this presentation. Contents * Introduction o Table 1. Oxygenate production capacity and demand * Oxygenate demand o Table 2. Estimated RFG demand share - mandated RFG areas, January 1998 * Fuel ethanol supply and demand balance o Table 3. Fuel ethanol annual statistics * MTBE supply and demand balance o Table 4. EIA MTBE annual statistics * Refinery balances
Momentum Balance of Gravity Flows
A unified scale analysis of the momentum balance of downslope gravity flows is developed to organize previous theories for the case of negligible ambient flow and fixed temperature deficit scale. The values of several nondimensional parameters ...
L. Mahrt
DOE Solar Decathlon: Energy Balance
Energy Balance (100 points) For the U.S. Department of Energy Solar Decathlon, each team house is equipped with a bidirectional utility meter that enables competition organizers to...
Vortex Generation Through Balanced Adjustment
The problem of geostrophic adjustment, originally considered by C.G. Rossby, is solved in an axisymmetric geometry for a continuously stratified fluid, where the adjusted final state is in hydrostatic, gradient-wind balance. This problem is ...
James C. McWilliams
Multi-item memory in the primate prefrontal cortex
The ability to retain multiple items in short-term memory is fundamental for cognition, yet almost nothing is known about its neural basis. To explore the mechanisms underlying this ability, we trained two monkeys to ...
Warden, Melissa R. (Melissa Rhoads)
German noch so: scalar degree operator and negative polarity item
This paper describes a puzzle introduced by German noch so, a degree operator and Negative Polarity Item. Noch so sentences allow for paraphrases containing a scalar particle (like even), suggesting that its polarity sensitivity can receive an analysis ...
Bernhard Schwarz
Microsoft Word - Glossary_May12.docx
Aquifer Storage Field: A sub-surface facility for storing natural gas, consisting of water-bearing sands topped by an impermeable cap rock. Balancing Item: Represents the...
Microsoft Word - Glossary_2012.docx
Aquifer Storage Field: A sub-surface facility for storing natural gas consisting of water-bearing sands topped by an impermeable cap rock. Balancing Item: Represents...
Plant Support Engineering: Counterfeit, Fraudulent, and Substandard Items
The contents of this report summarize valuable insights gleaned by the Electric Power Research Institute (EPRI) technical advisory group (TAG) that researched the techniques being used by U.S. government agencies, similar industries, and manufacturers to combat the growing problem of counterfeit and fraudulent items. The report clearly indicates that commercial nuclear licensees need to implement measures to prevent counterfeit items from being introduced into their inventory and facilities to address co...
Laser Rock Perforation Demo - The NE Multimedia Collection
rock perforation demo High power laser beam can be used in oil well completion application for perforating oil reservoir rock and increasing rock's permeability for high oil...
PARKER-HEADGATE ROCK & PARKER-GILA 161-kV TRANSMISSION LINE Cross Arm Repair and Helicopter Staging Areas Figure 1. Project Location Project Location j PARKER-HEADGATE ROCK &...
Spatial Water Balance in Texas
Water availability is critical to the economy in the state of Texas. Numerous reservoirs and conveyance structures have been constructed across the State to meet the water supply needs of farmers, municipalities, industries, and power generating facilities. Despite this extensive water management system, water supply remains a concern because of increasing populations and uncertainties about climate stability. The rainfall map of Texas shown in Figure 1.1 clearly shows that water management is a spatial problem. The State as a whole receives about 711 mm year-1 of rainfall, while the area of the State east of the 100th meridian receives 890 mm year-1 and the area west of the 100th meridian receives only 457 mm year-1. In addition to water supply concerns, the assessment of non-point source pollution is another important issue that is largely dependent on the spatial distribution of runoff. Although, the focus of this report is not to address water supply or pollution issues directly, an improved understanding of the spatial water balance - the partitioning of precipitation between evaporation, runoff, and groundwater recharge at different points in space - will directly benefit those who wish to assess water resource availability and non-point source pollution potential across the State. The goal of this study was to gain an improved understanding of the stocks of water in different components (air, soil, water bodies) of the hydrologic cycle and the fluxes between these components. A basic approach for determining stocks and fluxes involves the calculation of a water balance. A water balance, applied to a particular control volume, is an application of the law of conservation of mass which states that matter cannot be created or destroyed. To achieve a balance, the rate of change of storage of water within the control volume must be equal to the difference between its rates of inflow and outflow across the control surface. In this study, three independent water balance models were constructed to model different components of the hydrologic cycle - an atmospheric water balance, a soil-water balance, and a surface water balance. These models were constructed using a geographic information system (GIS). A GIS provides a framework for storing and manipulating spatial data and facilitates modeling on control volumes of various sizes and shapes. In all three cases, the choice of modeling unit was driven by the resolution and characteristics of the input data. The control volumes for the atmospheric, soil, and surface water balance models respectively are (1) an imaginary column confined horizontally by the boundary of Texas and extending to the 300 mb pressure level, (2) 0.5� cells with a depth equal to the plant-extractable water capacity of the soil, and (3) 166 gaged watersheds of differing sizes and shapes. Neither the atmospheric nor the surface water balance involve any simulation of physical processes and are simply mass balances based on empirical data. The soil-water balance does attempt to simulate evaporation from the soil through the use of a soil-moisture extraction function. Both the atmospheric and soil-water balance models are time-varying models, while the surface water balance model is steady-state and uses an empirical relationship to estimate mean annual runoff and evaporation in ungaged areas. One advantage of making three independent water balance calculations is that checks for consistency can be made among the three models. For example, all three models yield an estimate of actual evapotranspiration which is a difficult quantity to estimate, particularly at the regional scale. Previous studies at the scale of Texas have estimated only evaporation from open water surfaces and potential evapotranspiration from the land surface (TDWR, 1983; Dugas and Ainsworth, 1983).
Reed, Seann; Maidment, David; Patoux, Jerome
Towards a sustainable energy balance: progressive efficiency...
Towards a sustainable energy balance: progressive efficiency and the return of energy conservation Title Towards a sustainable energy balance: progressive efficiency and the return...
Definition: Adjacent Balancing Authority | Open Energy Information
either directly or via a multi-party agreement or transmission tariff.1 Related Terms transmission lines, Balancing Authority, Balancing Authority Area, transmission line,...
U.S. Natural Gas Monthly Supply and Disposition Balance
Monthly Supply and Disposition Balance Monthly Supply and Disposition Balance (Billion Cubic Feet) Period: Monthly Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Data Series Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 View History Gross Withdrawals 2,473 2,541 2,444 2,550 2,540 2,465 1973-2013 Marketed Production 2,086 2,166 2,097 2,188 2,188 2,105 1973-2013 NGPL Production, Gaseous Equivalent 107 110 107 113 117 116 1973-2013 Dry Production 1,979 2,056 1,990 2,076 2,071 1,989 1973-2013 Supplemental Gaseous Fuels 5 5 3 3 5 5 1973-2013 Net Imports 95 92 103 108 106 123 1973-2013 Net Storage Withdrawals -136 -418 -372 -275 -270 -355 1973-2013 Balancing Item 14 12 9 7 6 -5 2001-2013
Hot dry rock energy project
A proof-of-concept experimental project by the Los Alamos Scientific Laboratory endeavors to establish the feasibility of exploitation of the thermal energy contained in the earth's crust where such energy and a transporting fluid have not been juxtaposed in nature. A region of high heat flow and apparently unfaulted basement rock formation was selected. Two boreholes, drilled to a total depth of about 3 km (10,000 ft) and penetrating about 2.5 km (7500 ft) into the Precambrian formation, to a rock temperature of 200/sup 0/C, have been connected at depth by a hydraulically fractured zone to form the heat extraction surface. Energy was extracted at a rate of 3.2 MW(t) with water temperature of 132/sup 0/C during a 96-h preliminary circulating test run performed late in September 1977. This paper traces the progress of the project, summarizes procedures and salient events, and references detailed reports and specialized topics.
Acceptable Materials for Recycling at Colorado State University Mixed Paper -Acceptable Items
Acceptable Materials for Recycling at Colorado State University Mixed Paper - Acceptable Items - Acceptable Items Refrigerators Microwave ovens Electrical Equipment: computers, monitors, TV's, etc. Remember
Relative Permeability of Fractured Rock
Contemporary understanding of multiphase flow through fractures is limited. Different studies using synthetic fractures and various fluids have yielded different relative permeability-saturation relations. This study aimed to extend the understanding of multiphase flow by conducting nitrogen-water relative permeability experiments on a naturally-fractured rock from The Geysers geothermal field. The steady-state approach was used. However, steady state was achieved only at the endpoint saturations. Several difficulties were encountered that are attributed to phase interference and changes in fracture aperture and surface roughness, along with fracture propagation/initiation. Absolute permeabilities were determined using nitrogen and water. The permeability values obtained change with the number of load cycles. Determining the absolute permeability of a core is especially important in a fractured rock. The rock may change as asperities are destroyed and fractures propagate or st rain harden as the net stresses vary. Pressure spikes occurred in water a solute permeability experiments. Conceptual models of an elastic fracture network can explain the pressure spike behavior. At the endpoint saturations the water relative permeabilities obtained are much less than the nitrogen gas relative permeabilities. Saturations were determined by weighing and by resistivity calculations. The resistivity-saturation relationship developed for the core gave saturation values that differ by 5% from the value determined by weighing. Further work is required to complete the relative permeability curve. The steady-state experimental approach encountered difficulties due to phase interference and fracture change. Steady state may not be reached until an impractical length of time. Thus, unsteady-state methods should be pursued. In unsteady-state experiments the challenge will be in quantifying rock fracture change in addition to fluid flow changes.
Mark D. Habana
Suspect/Counterfeit Items Information Guide for Subcontractors/Suppliers
Counterfeiting of industrial and commercial grade items is an international problem that places worker safety, program objectives, expensive equipment, and security at risk. In order to prevent the introduction of Suspect/Counterfeit Items (S/CI), this information sheet is being made available as a guide to assist in the implementation of S/CI awareness and controls, in conjunction with subcontractor's/supplier's quality assurance programs. When it comes to counterfeit goods, including industrial materials, items, and equipment, no market is immune. Some manufactures have been known to misrepresent their products and intentionally use inferior materials and processes to manufacture substandard items, whose properties can significantly cart from established standards and specifications. These substandard items termed by the Department of Energy (DOE) as S/CI, pose immediate and potential threats to the safety of DOE and contractor workers, the public, and the environment. Failure of certain systems and processes caused by an S/CI could also have national security implications at Los Alamos National Laboratory (LANL). Nuclear Safety Rules (federal Laws), DOE Orders, and other regulations set forth requirements for DOE contractors to implement effective controls to assure that items and services meet specified requirements. This includes techniques to implement and thereby minimizing the potential threat of entry of S/CI to LANL. As a qualified supplier of goods or services to the LANL, your company will be required to establish and maintain effective controls to prevent the introduction of S/CI to LANL. This will require that your company warrant that all items (including their subassemblies, components, and parts) sold to LANL are genuine (i.e. not counterfeit), new, and unused, and conform to the requirements of the LANL purchase orders/contracts unless otherwise approved in writing to the Los Alamos National Security (LANS) contract administrator/procurements specialist.
Tessmar, Nancy D. [Los Alamos National Laboratory; Salazar, Michael J. [Los Alamos National Laboratory
Dispersivity as an oil reservoir rock characteristic
The main objective of this research project is to establish dispersivity, {alpha}{sub d}, as an oil reservoir rock characteristic and to use this reservoir rock property to enhance crude oil recovery. A second objective is to compare the dispersion coefficient and the dispersivity of various reservoir rocks with other rock characteristics such as: porosity, permeability, capillary pressure, and relative permeability. The dispersivity of a rock was identified by measuring the physical mixing of two miscible fluids, one displacing the other in a porous medium. 119 refs., 27 figs., 12 tabs.
Menzie, D.E.; Dutta, S.
The 1992 Pacific Northwest Residential Energy Survey : Phase 1 : Book 3 : Item-by-item Crosstabulations.
This book constitutes a portion of the primary documentation for the 1992 Pacific Northwest Residential Energy Survey, Phase I. The complete 33-volume set of primary documentation provides information needed by energy analysts and interpreters with respect to planning, execution, data collection, and data management of the PNWRES92-I process. Thirty of these volumes are devoted to different ``views`` of the data themselves, with each view having a special purpose or interest as its focus. Analyses and interpretations of these data will be the subjects of forthcoming publications. Conducted during the late summer and fall months of 1992, PNWRES92-I had the over-arching goal of satisfying basic requirements for a variety of information about the stock of residential units in Bonneville`s service region. Surveys with a similar goal were conducted in 1979 and 1983. This volume discerns the information by the particular Bonneville Area Office. ``Selected crosstabulations`` refers to a set of nine survey items of wide interest (Dwelling Type, Ownership Type, Year-of-Construction, Dwelling Size, Primary Space-Heating Fuel, Primary Water-Heating Fuel, Household Income for 1991, Utility Type, and Space-Heating Fuels: Systems and Equipment) that were crosstabulated among themselves.
United States. Bonneville Power Administration. End-Use Research Section; Applied Management & Planning Group (Firm)
Steam System Balancing and Tuning
Steam System Balancing and Steam System Balancing and Tuning Building America Stakeholder Meeting Austin, TX Jayne Choi, Energy Analyst, CNT Energy March 2, 2012 PARR Current collaboration with GTI as a part of the PARR Building America team - Steam Systems Balancing and Tuning Study - Heating season 2011-2012 Background In Chicago, heating is the focus of residential energy use Of the 470,000 multifamily units in the Chicago region, at least 70,000 of those are steam heated Old steam systems invariably suffer from imbalance - Tenants must use supplemental heat or open their windows to cool their apartments during the heating season Buildings are often overheated Problem Statement (CNT Energy) Steam Heating Steam heat was the best option for buildings constructed between 1900 and 1930
Definition: Intermediate Balancing Authority | Open Energy Information
Intermediate Balancing Authority Intermediate Balancing Authority Jump to: navigation, search Dictionary.png Intermediate Balancing Authority A Balancing Authority Area that has connecting facilities in the Scheduling Path between the Sending Balancing Authority Area and Receiving Balancing Authority Area and operating agreements that establish the conditions for the use of such facilities.[1] Related Terms Balancing Authority, Balancing Authority Area, Scheduling Path, Sending Balancing Authority, smart grid References ↑ Glossary of Terms Used in Reliability Standards An inli LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ne Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Intermediate_Balancing_Authority&oldid=502634"
Current balancing for battery strings
A battery plant is described which features magnetic circuit means for balancing the electrical current flow through a pluraliircuitbattery strings which are connected electrically in parallel. The magnetic circuit means is associated with the battery strings such that the conductors carrying the electrical current flow through each of the battery strings pass through the magnetic circuit means in directions which cause the electromagnetic fields of at least one predetermined pair of the conductors to oppose each other. In an alternative embodiment, a low voltage converter is associated with each of the battery strings for balancing the electrical current flow through the battery strings.
Galloway, James H. (New Baltimore, MI)
Item Subject I. Preventing Abuse of Interagency Contracts.
(FAC) 2005-55 (FAC) 2005-55 List of Rules in FAC 2005-55 Item Subject I. Preventing Abuse of Interagency Contracts. II. Transition to the System for Award Management (SAM). III. Brand-Name Specifications. IV. Time-and-Materials and Labor-Hour Contracts for Commercial Items. V. Public Access to the Federal Awardee Performance and Integrity Information System. VI. Updated Financial Accounting Standards Board Accounting References. VII. Technical Amendments. Item I--Preventing Abuse of Interagency Contracts (FAR Case 2008-032) This rule adopts as final, with changes, an interim rule that implemented section 865, Preventing Abuse of Interagency Contracts, of the Duncan Hunter National Defense Authorization Act for Fiscal Year 2009 (Pub. L. 110-417). This final rule further amends FAR
Hot Dry Rock; Geothermal Energy
The commercial utilization of geothermal energy forms the basis of the largest renewable energy industry in the world. More than 5000 Mw of electrical power are currently in production from approximately 210 plants and 10 000 Mw thermal are used in direct use processes. The majority of these systems are located in the well defined geothermal generally associated with crustal plate boundaries or hot spots. The essential requirements of high subsurface temperature with huge volumes of exploitable fluids, coupled to environmental and market factors, limit the choice of suitable sites significantly. The Hot Dry Rock (HDR) concept at any depth originally offered a dream of unlimited expansion for the geothermal industry by relaxing the location constraints by drilling deep enough to reach adequate temperatures. Now, after 20 years intensive work by international teams and expenditures of more than $250 million, it is vital to review the position of HDR in relation to the established geothermal industry. The HDR resource is merely a body of rock at elevated temperatures with insufficient fluids in place to enable the heat to be extracted without the need for injection wells. All of the major field experiments in HDR have shown that the natural fracture systems form the heat transfer surfaces and that it is these fractures that must be for geothermal systems producing from naturally fractured formations provide a basis for directing the forthcoming but, equally, they require accepting significant location constraints on HDR for the time being. This paper presents a model HDR system designed for commercial operations in the UK and uses production data from hydrothermal systems in Japan and the USA to demonstrate the reservoir performance requirements for viable operations. It is shown that these characteristics are not likely to be achieved in host rocks without stimulation processes. However, the long term goal of artificial geothermal systems developed by systematic engineering procedures at depth may still be attained if high temperature sites with extensive fracturing are developed or exploited. [DJE -2005
Transformed Eliassen Balanced Vortex Model
We consider the axisymmetric balanced flow occurring in a thermally forced vortex in which the frictional inflow is confined to a thin boundary layer. Above the boundary layer the absolute angular momentum �fR2=rv+�fr2 is conserved. We refer to R ...
Wayne H. Schubert; James J. Hack
A wind farm balancing analysis
Presently, the wind energy utilization devices approach is changed from individual isolated equipments, designated to a singular application, to compel wind farms connected to the electrical network. Supported by a favorable legal frame, they become ... Keywords: components balance, simulation and modeling, transfer functions
Mircea Grigoriu; Marius Constantin Popescu; Luminita Georgeta Popescu; Doina Cornelia Dinu; Cristinel Popescu
3.1_Item_2_Macondo_Well_07_Jun_1900.pdf | Department of Energy
3.1Item2MacondoWell07Jun1900.pdf 3.1Item2MacondoWell07Jun1900.pdf 3.1Item2MacondoWell07Jun1900.pdf More Documents & Publications 1.1Item11RITT07Jun1900N...
SunShot Initiative: Balance of Systems
Key Activities Key Activities Printable Version Share this resource Send a link to SunShot Initiative: Balance of Systems to someone by E-mail Share SunShot Initiative: Balance of Systems on Facebook Tweet about SunShot Initiative: Balance of Systems on Twitter Bookmark SunShot Initiative: Balance of Systems on Google Bookmark SunShot Initiative: Balance of Systems on Delicious Rank SunShot Initiative: Balance of Systems on Digg Find More places to share SunShot Initiative: Balance of Systems on AddThis.com... Concentrating Solar Power Photovoltaics Systems Integration Balance of Systems Reducing Non-Hardware Costs Lowering Barriers Fostering Growth Balance of Systems Get the Adobe Flash Player to see this video. Text Alternative The U.S. Department of Energy (DOE) SunShot Initiative accelerates the
Alternative Fuels Data Center: Lifecycle Energy Balance
Alternative Fuels and Advanced Vehicles Data Center (EERE)
AFDC AFDC Printable Version Share this resource Send a link to Alternative Fuels Data Center: Lifecycle Energy Balance to someone by E-mail Share Alternative Fuels Data Center: Lifecycle Energy Balance on Facebook Tweet about Alternative Fuels Data Center: Lifecycle Energy Balance on Twitter Bookmark Alternative Fuels Data Center: Lifecycle Energy Balance on Google Bookmark Alternative Fuels Data Center: Lifecycle Energy Balance on Delicious Rank Alternative Fuels Data Center: Lifecycle Energy Balance on Digg Find More places to share Alternative Fuels Data Center: Lifecycle Energy Balance on AddThis.com... More in this section... Lifecycle Energy Balance The fossil "energy balance" of ethanol has been the subject of debate despite the fact that this metric is not as useful to policymakers as
DOE hot dry rock program
Hydraulic fracturing has been used to create and subsequently to enlarge the first hot dry rock heat-extraction loop at Fenton Hill, New Mexico. Encouraging results prompted the DOE to expand this project into a program of national scope. The elements of that Program and their present status are discussed. Emphasis is given the ongoing Fenton Hill Project where techniques and information developed in the existing research system will soon be used to produce a multiply-fractured engineering system in hotter rock at the same site. Recent results from research loop operation and progress in constructing the engineering system are reported. Although acoustic mapping and system geometry indicate that the primary hydraulic fractures are essentially vertical, relatively low fracturing pressure and absence of a sharp breakdown suggest that at Fenton Hill fracture initiation occurs by reopening of old natural fractures rather than by initiation of new ones. Flow patterns and temperature behavior suggest opening of additional old fractures as the loop is operated. Except where the hot fluid leaves the crack system to enter the production well, flow impedances are very low without either artificial propping or inflation by pressurization.
Nunz, G.J.
Microsoft Word - BSA NC Items Rev11.docx
NCItems, Rev. 11; (Jun-12) 1 of 21 NCItems, Rev. 11; (Jun-12) 1 of 21 BROOKHAVEN SCIENCE ASSOCIATES, LLC GENERAL TERMS AND CONDITIONS FOR NONCOMMERCIAL ITEMS AT BROOKHAVEN NATIONAL LABORATORY Table of Contents Article 1 DEFINITIONS ................................................................................................................... 3 Article 2 ORDER OF PRECEDENCE ............................................................................................. 3 Article 3 ACCEPTANCE OF AGREEMENT, SURVIVABILITY ................................................. 4
What's hot and what's not: tracking most frequent items dynamically
Most database management systems maintain statistics on the underlying relation. One of the important statistics is that of the "hot items" in the relation: those that appear many times (most frequently, or more than some threshold). For example, end-biased ...
Graham Cormode; S. Muthukrishnan
Most database management systems maintain statistics on the underlying relation. One of the important statistics is that of the �hot items� in the relation: those that appear many times (most frequently, or more than some threshold). For ... Keywords: Data stream processing, approximate query answering.
Item-based top-N recommendation algorithms
The explosive growth of the world-wide-web and the emergence of e-commerce has led to the development of recommender systems---a personalized information filtering technology used to identify a set of items that will be of interest to a certain ... Keywords: e-commerce, predicting user behavior, world wide web
Mukund Deshpande; George Karypis
Representing digital assets usingMPEG-21 Digital Item Declaration
Various XML-based approaches aimed at representing compound digital assets have emerged over the last several years. Approaches that are of specific relevance to the digital library community include the Metadata Encoding and Transmission Standard (METS), ... Keywords: Digital Item, Digital asset, MPEG-21 DID, OAI-PMH, OpenURL
Jeroen Bekaert; Emiel De Kooning; Herbert de Sompel
MPEG-21 digital items in research and practice
The aim of the MPEG-21 standard, the so-called Multimedia Framework, is to enable transparent and augmented use of multimedia resources across a wide range of networks, devices, user preferences, and communities, notably for trading (of bits). As such, ... Keywords: DANAE, ENTHRONE, MPEG-21, P2P-Next, UPnP, application, digital item, digital library, usage
Christian Timmerer; Hermann Hellwagner
Definition: Rock Lab Analysis | Open Energy Information
to core recovered from boreholes. They typically involve measuring the physical and chemical properties of the rock. Physical properties include density, elastic modulus, seismic...
Rock Energy Cooperative (Illinois) | Open Energy Information
Cooperative (Illinois) Jump to: navigation, search Name Rock Energy Cooperative Place Illinois Utility Id 16196 References EIA Form EIA-861 Final Data File for 2010 - File220101...
This project consists of three key interrelated Phases, each focusing on the central issue of imaging and quantifying fractured reservoirs, through improved integration of the principles of rock physics, geology, and seismic wave propagation. This report summarizes the results of Phase I of the project. The key to successful development of low permeability reservoirs lies in reliably characterizing fractures. Fractures play a crucial role in controlling almost all of the fluid transport in tight reservoirs. Current seismic methods to characterize fractures depend on various anisotropic wave propagation signatures that can arise from aligned fractures. We are pursuing an integrated study that relates to high-resolution seismic images of natural fractures to the rock parameters that control the storage and mobility of fluids. Our goal is to go beyond the current state-of-the art to develop and demonstrate next generation methodologies for detecting and quantitatively characterizing fracture zones using seismic measurements. Our study incorporates 3 key elements: (1) Theoretical rock physics studies of the anisotropic viscoelastic signatures of fractured rocks, including up scaling analysis and rock-fluid interactions to define the factors relating fractures in the lab and in the field. (2) Modeling of optimal seismic attributes, including offset and azimuth dependence of travel time, amplitude, impedance and spectral signatures of anisotropic fractured rocks. We will quantify the information content of combinations of seismic attributes, and the impact of multi-attribute analyses in reducing uncertainty in fracture interpretations. (3) Integration and interpretation of seismic, well log, and laboratory data, incorporating field geologic fracture characterization and the theoretical results of items 1 and 2 above. The focal point for this project is the demonstration of these methodologies in the Marathon Oil Company Yates Field in West Texas.
Gary Mavko
Definition: Host Balancing Authority | Open Energy Information
Host Balancing Authority Host Balancing Authority Jump to: navigation, search Dictionary.png Host Balancing Authority A Balancing Authority that confirms and implements Interchange Transactions for a Purchasing Selling Entity that operates generation or serves customers directly within the Balancing Authority's metered boundaries., The Balancing Authority within whose metered boundaries a jointly owned unit is physically located.[1] Related Terms Balancing Authority, Interchange Transaction, smart grid References ↑ Glossary of Terms Used in Reliability Standards An in LikeLike UnlikeLike You like this.Sign Up to see what your friends like. line Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Host_Balancing_Authority&oldid=502546" Categories:
Is the North Atlantic in Sverdrup Balance?
Evidence for the widespread assumption that Sverdrup balance describes the dynamics of the North Atlantic subtropical gyre is reviewed critically. If the balance were to hold up to the edge of the Gulf Stream system, then there is a serious ...
Carl Wunsch; Dean Roemmich
Quasi-balanced Dynamics in the Tropics
We propose a quasi-balance dynamical system of equations for slowly evolving, large-scale motions in the tropics. Unlike other balance schemes, equatorially trapped Kelvin waves are included. Following the lead of Gill, this system is based on ...
Duane E. Stevens; Hung-Chi Kuo; Wayne H. Schubert; Paul E. Ciesielski
Dynamical Balances and Tropical Stratospheric Upwelling
The dynamical balances associated with upwelling in the tropical lower stratosphere are investigated based on climatological 40-yr ECMWF Re-Analysis (ERA-40) and NCEP�NCAR reanalysis data. Zonal mean upwelling is calculated from momentum balance ...
William J. Randel; Rolando Garcia; Fei Wu
Balance Sheet -- A Financial Management Tool
A balance sheet is a statement of the financial condition of a business at a specific time. This publication briefly discusses the balance sheet, its uses, and how to evaluate it.
Klinefelter, Danny A.
DOE Solar Decathlon: Village Energy Balance
Village Energy Balance The competition houses in the U.S. Department of Energy Solar Decathlon strive to produce a net energy balance over the course of their operation in the...
Schmid et al. Inclusion Behavior in Deforming Rocks Inclusion Behavior in Deforming Rocks
Schmid et al. Inclusion Behavior in Deforming Rocks Inclusion Behavior in Deforming Rocks Dani Podladchikov, PGP, University of Oslo, Norway Intro 1 #12;Schmid et al. Inclusion Behavior in Deforming Rocks Motivation 2 The single most useful thing to understand! #12;Schmid et al. Inclusion Behavior in Deforming
Cesare, Bernardo
Balance of Plant Requirements for a Nuclear Hydrogen Plant
This document describes the requirements for the components and systems that support the hydrogen production portion of a 600 megawatt thermal (MWt) Next Generation Nuclear Plant (NGNP). These systems, defined as the "balance-of-plant" (BOP), are essential to operate an effective hydrogen production plant. Examples of BOP items are: heat recovery and heat rejection equipment, process material transport systems (pumps, valves, piping, etc.), control systems, safety systems, waste collection and disposal systems, maintenance and repair equipment, heating, ventilation, and air conditioning (HVAC), electrical supply and distribution, and others. The requirements in this document are applicable to the two hydrogen production processes currently under consideration in the DOE Nuclear Hydrogen Initiative. These processes are the sulfur iodide (S-I) process and the high temperature electrolysis (HTE) process. At present, the other two hydrogen production process - the hybrid sulfur-iodide electrolytic process (SE) and the calcium-bromide process (Ca-Br) -are under flow sheet development and not included in this report. While some features of the balance-of-plant requirements are common to all hydrogen production processes, some details will apply only to the specific needs of individual processes.
Bradley Ward
California Energy Balance ENVIRONMENTAL AREA RESEARCH
California Energy Balance Database ENVIRONMENTAL AREA RESEARCH PIER Environmental Research www produced an energy balance for California with a database called California Energy Balance (CALEB--factors such as fuel prices, changes in type of industries located in California, and increased energy efficiency
Understanding the carbon and greenhouse gas balance
Understanding the carbon and greenhouse gas balance of forests in Britain Research Report #12;#12;Research Report Understanding the carbon and greenhouse gas balance of forests in Britain Forestry., White, M. and Yamulki, S. (2012). Understanding the carbon and greenhouse gas balance of forests
The hot dry rock geothermal energy program
The paper presents a simplified description of the Department of Energy's Hot-Dry-Rock program conducted at Fenton Hill, New Mexico. What a hot-dry-rock resource is and what the magnitude of the resource is are also described.
Smith, M.C.
Proceedings of hot dry rock geothermal workshop
Abstracts of 38 papers are included on the following subjects: rock mechanics, part 1: hydraulic fracturing; fracture imaging and borehole surveying; fluid flow-pressure analyses; rock mechanics, part 2: hydraulic fracturing and thermal cracking; geochemistry; heat extraction modeling; and economics and energy conversion. (MHR)
Elsner, D.B. (comp.)
Eagle Rock Geothermal Facility | Open Energy Information
Eagle Rock Geothermal Facility Eagle Rock Geothermal Facility Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Eagle Rock Geothermal Facility General Information Name Eagle Rock Geothermal Facility Facility Eagle Rock Sector Geothermal energy Location Information Location The Geysers, California Coordinates 38.826770222484°, -122.80002593994° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.826770222484,"lon":-122.80002593994,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Definition: Rock Sampling | Open Energy Information
Sampling Sampling Jump to: navigation, search Dictionary.png Rock Sampling Systematic rock sampling can be used to characterize a geothermal reservoir. The physical and chemical properties of rock samples provide important information for determining whether a power generation or heat utilization facility can be developed. Some general rock properties can be measured by visual inspection, but detailed properties require laboratory techniques. View on Wikipedia Wikipedia Definition A core sample is a cylindrical section of (usually) a naturally occurring substance. Most core samples are obtained by drilling with special drills into the substance, for example sediment or rock, with a hollow steel tube called a core drill. The hole made for the core sample is called the "core hole". A variety of core samplers exist to sample
SUMMARY OF FINAL RULES Item Subject FAR Case
CIRCULARS 2005-56 and -57 CIRCULARS 2005-56 and -57 SUMMARY OF FINAL RULES Item Subject FAR Case FAC 56-Miscellaneous I. Women-Owned Small Business Program 2010-015 II. Proper Use and Management of Cost-Reimbursement Contracts 2008-030 III. Requirements for Acquisitions Pursuant to Multiple-Award Contracts 2007-012 IV. Socioeconomic Program Parity 2011-004 V. Trade Agreements Thresholds 2012-002 VI. New Designated Country (Armenia) and Other Trade Agreements Updates 2011-30 VII. Government Property 2010-009 VIII. Technical Amendments FAC 57- Korea Free trade Agreement Item I-Women-Owned Small Business (WOSB) Program (FAR Case 2010-015) This rule adopts as final, with changes, an interim rule published in the Federal Register at 76 FR
Microsoft Word - BSA NC Items Rev10.docx
10; (Aug. 2011) 1 of 17 10; (Aug. 2011) 1 of 17 BROOKHAVEN SCIENCE ASSOCIATES, LLC GENERAL TERMS AND CONDITIONS FOR NON-COMMERCIAL ITEMS AT BROOKHAVEN NATIONAL LABORATORY Definitions 2 Article 1 Order of Precedence 2 Article 2 Acceptance of Agreement 2 Article 3 Complete Agreement 3 Article 4 Assignment 3 Article 5 Compliance with Laws and Regulations 3 Article 6 Compliance with Internet Protocol Version 6 (IPv6) In Acquiring Information Article 7 Technology. 3 Independent Contractor; Hold Harmless 4 Article 8 Notice Regarding Late Delivery 4 Article 9 Inspection and Acceptance 4 Article 10 No Waiver 5 Article 11 New Materials 5 Article 12 Suspect/Counterfeit Items 5 Article 13 Hazardous Material Identification and Material Safety Data 6 Article 14 Title and Risk of Loss 6 Article 15
Federal Acquisition Circular 2005-52 Item Subject FAR case
Circular 2005-52 Circular 2005-52 Item Subject FAR case I Sustainable Acquisition 2010-001 II Contract Closeout 2008-020 III Prohibition on Contracting with Inverted Domestic Corporations 2008-009 IV Buy American Exemption for Commercial Information Technology - Construction Material 2009-039 V Oversight of Contractor Ethics Programs 2010-017 VI Technical Amendments N/A Item I--Sustainable Acquisition (FAR Case 2010-001) (Interim) This interim rule amends the FAR to implement Executive Order 13514, Federal Leadership in Environmental, Energy, and Economic Performance, and Executive Order 13423, Strengthening Federal Environmental, Energy, and Transportation Management. It requires Federal agencies to leverage agency acquisitions to foster markets for
Ultra-wideband Location Authentication for Item Tracking
International safeguards is increasingly utilizing unattended and remote monitoring methods to improve inspector efficiency and the timeliness of diversion detection. Item identification and tracking has been proposed as one unattended remote monitoring method, and a number of radio-frequency (RF) technologies have been proposed. When utilizing location information for verification purposes, strong assurance of the authenticity of the reported location is required, but most commercial RF systems are vulnerable to a variety of spoofing and relay attacks. ORNL has developed a distance bounding method that uses ultra-wideband technology to provide strong assurance of item location. This distance bounding approach can be coupled with strong symmetric key authentication methods to provide a fully authenticable tracking system that is resistant to both spoofing and relay attacks. This paper will discuss the overall problems associated with RF tracking including the common spoofing and relay attack scenarios, the ORNL distance bounding approach for authenticating location, and the potential applications for this technology.
Rowe, Nathan C [ORNL; Kuhn, Michael J [ORNL; Stinson, Brad J [ORNL; Holland, Stephen A [ORNL
Balancing oil and environment... responsibly.
Balancing Oil and Environment�Responsibly As the price of oil continues to skyrocket and global oil production nears the brink, pursuing unconventional oil supplies, such as oil shale, oil sands, heavy oils, and oils from biomass and coal has become increasingly attractive. Of particular significance to the American way is that our continent has significant quantities of these resources. Tapping into these new resources, however, requires cutting-edge technologies for identification, production, processing and environmental management. This job needs a super hero or two for a job of this size and proportion�
Weimer, Walter C.; Teske, Lisa
Annual Uncosted Balances Reports | Department of Energy
Uncosted Balances Reports Uncosted Balances Reports Annual Uncosted Balances Reports Section 2307 of the Energy Policy Act of 1992 (42 U.S.C. 13526) requires the Department of Energy (Department or DOE) to submit an annual report to Congress on the state of the Department's uncosted obligations. The section requires the report to identify the uncosted obligations at the end of the previous fiscal year (FY), describe the purpose of those funds, and describe the effect the information had on the annual budget request. Documents Available for Download May 29, 2013 FY 2012 Annual Uncosted Balances Report This report represents an analysis of the Department's uncosted balances for FY 2012. June 29, 2012 FY 2011 Annual Uncosted Balances Report This report represents an analysis of the Department's uncosted balances
the piezoelectric source plate and the rock surface. With aThe S^j sources were bonded to the rock surface with a fast-^ source plate was epoxied in position on the rock specimen.
Waters, K.H.
Water-Balance Cover Performance
0, 2010, Phoenix, AZ 0, 2010, Phoenix, AZ Natural and Enhanced Attenuation of Soil and Groundwater at the Monument Valley, Arizona, DOE Legacy Waste Site-10281 W.J. Waugh, D.E. Miller, S.A. Morris, and L.R. Sheader S.M. Stoller Corporation, Grand Junction, CO E.P. Glenn, D. Moore, and K.C. Carroll University of Arizona, Tucson, AZ L. Benally and M. Roanhorse Navajo Nation, Window Rock, AZ R.P. Bush U.S. Department of Energy, Grand Junction, CO ABSTRACT The U.S. Department of Energy (DOE), the Navajo Nation, and the University of Arizona are exploring natural and enhanced attenuation remedies for groundwater contamination at a former uranium-ore processing site near Monument Valley, Arizona. DOE removed radioactive tailings from the Monument Valley site in 1994. Nitrate and ammonium, waste products of the milling process, remain in an alluvial
Some approaches to rock mass hydrofracture theory
A new engineering method has been developed at the Leningrad Mining Institute for defining hot dry rock hydrofracturing parameters. It reflects the structural features of a real jointed rock mass, its gravity-tectonic components of the stress tensor and volume character of deformations, taking into account the inertial effects of hydrodynamics in the non-Darcy zone of radial fluid flow near the injection well, and conversion of the heat energy extracted from hot rock by circulating water partly into filtration-flow additional pressure. Results of calculations are compared to field experiments at Fenton Hill, NM, and are used for the first HDR circulation systems in the USSR.
Dyadkin, Yuri, D.
A PTAS for the chance-constrained knapsack problem with random item sizes
We consider a stochastic knapsack problem where each item has a known profit but a random size that is normally distributed independent of other items. The goal is to select a profit maximizing set of items such that the probability of the total size ... Keywords: Approximation schemes, Chance constraint, Stochastic knapsack
Vineet Goyal; R. Ravi
Guideline for the Seismic Technical Evaluation of Replacement Items for Nuclear Power Plants
This guideline provides practical, cost-effective techniques for reasonably assuring that replacement items will meet seismic performance requirements. Meeting such requirements is necessary to maintain the seismic design basis of commercial nuclear power plants. The guideline also offers a method for determining when a seismic technical evaluation of replacement items is required as part of the procurement process for spare and replacement items.
Device for balancing parallel strings
A battery plant is described which features magnetic circuit means in association with each of the battery strings in the battery plant for balancing the electrical current flow through the battery strings by equalizing the voltage across each of the battery strings. Each of the magnetic circuit means generally comprises means for sensing the electrical current flow through one of the battery strings, and a saturable reactor having a main winding connected electrically in series with the battery string, a bias winding connected to a source of alternating current and a control winding connected to a variable source of direct current controlled by the sensing means. Each of the battery strings is formed by a plurality of batteries connected electrically in series, and these battery strings are connected electrically in parallel across common bus conductors.
Mashikian, Matthew S. (Storrs, CT)
Balancing people, plants, and practices
Two of the biggest challenges facing the US power industry today are retaining an experienced, capable workforce and operating and maintaining a reliable, diversified fleet of generating plants. Success in the marketplace requires a proper balancing of staff and new technology, something few gencos do well. Following this introductory paper in this issue are several technical articles representing a small sample of the steps that gencos nationwide are taking to prolong plant life. Unlike the false promise of Ponce de Leon's fountain of youth in Florida, the promise of longer life for aging plants is real wherever experienced engineers and technicians are on the job. The article looks at problems across America, from the East Coast to the West Coast. It is supported by diagrams projecting US new capacity and plant type additions up to 2014. 5 figs.
Peltier, R.
Rock of Ages | Open Energy Information
of Ages of Ages Jump to: navigation, search Name Rock of Ages Facility Rock of Ages Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Owner Rock of Ages Energy Purchaser Rock of Ages Location Graniteville VT Coordinates 44.14668574°, -72.48180896° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.14668574,"lon":-72.48180896,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Definition: Isotopic Analysis- Rock | Open Energy Information
Isotopic Analysis- Rock Isotopic Analysis- Rock Jump to: navigation, search Dictionary.png Isotopic Analysis- Rock Isotopes are atoms of the same element that have different numbers of neutrons. An isotopic analysis looks at a particular isotopic element(s) in a given system, while the conditions which increase/decrease the number of neutrons are well understood and measurable.[1] View on Wikipedia Wikipedia Definition References ↑ http://wwwrcamnl.wr.usgs.gov/isoig/isopubs/itchch2.html Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:Isotopic_Analysis-_Rock&oldid=687702" Category: Definitions What links here Related changes Special pages Printable version Permanent link Browse properties
Rock bed heat accumulators. Final report
The principal objectives of the research program on rock bed heat accumulators (or RBHA) are: (1) to investigate the technical and economic feasibility of storing large amounts of thermal energy (in the tens of MWt range) at high temperature (up to 500/sup 0/C) over extended periods of time (up to 6 months) using native earth or rock materials; (2) to conduct studies to establish the performance characteristics of large rock bed heat accumulators at various power and temperature levels compatible with thermal conversion systems; and (3) to assess the materials and environmental problems associated with the operation of such large heat accumulators. Results of the study indicate that rock bed heat accumulators for seasonal storage are both technically and economically feasible, and hence could be exploited in various applications in which storage plays an essential role such as solar power and total energy systems, district and cogeneration heating systems.
Riaz, M.
Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field
source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field Investigations Of In Situ Geochemical Behavior Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field Investigations Of In Situ Geochemical Behavior Details Activities (5) Areas (2) Regions (0) Abstract: Two hot dry rock (HDR) geothermal energy reservoirs have been created by hydraulic fracturing of Precambrian granitic rock between two wells on the west flank of the Valles Caldera in the Jemez Mountains of northern New Mexico. Heat is extracted by injecting water into one well,
DOE Solar Decathlon: Energy Balance Contest
Energy Balance Contest Energy Balance Contest (100 points) For the U.S. Department of Energy Solar Decathlon 2013, each team house was equipped with a bidirectional utility meter that enabled competition organizers to measure the net energy a house produced or consumed over the course of the competition. In the Energy Balance Contest, a team received full points for producing at least as much energy as its house needed, thus achieving a net energy consumption of zero during contest week. This was accomplished by balancing production and consumption. Reduced points were earned for a net electrical energy balance between -50 kWh and 0 kWh. Reduced points were scaled linearly. The final measurements for the Energy Balance Contest are shown in the graphic below. Roll over each graphic with your mouse for detailed
High order well-balanced schemes
In this paper the authors review some recent work on high-order well-balanced schemes. A characteristic feature of hyperbolic systems of balance laws is the existence of non-trivial equilibrium solutions, where the effects of convective fluxes and source terms cancel each other. Well-balanced schemes satisfy a discrete analogue of this balance and are therefore able to maintain an equilibrium state. They discuss two classes of schemes, one based on high-order accurate, non-oscillatory finite difference operators which are well-balanced for a general class of equilibria, and the other one based on well-balanced quadratures, which can - in principle - be applied to all equilibria. Applications include equilibria at rest, where the flow velocity vanishes, and also the more challenging moving flow equilibria. Numerical experiments show excellent resolution of unperturbed as well as slightly perturbed equilibria.
Noelle, Sebastian [Institut fur Physikalische Chemie der RWTH; Xing, Yulong [ORNL; Shu, Chi-wang [Brown University
Material balance assay of Devonian gas shale
A Devonian shale retorting method, similar to the TOSCO Material Balance Assay, was developed. Oil, gas, water, and spent shale collected from the thermal decomposition of Devonian shale provide material balance closure. Elemental and other analyses were used to characterize the products and evaluate their fuel potential. The precision of each analysis was estimated by running a series of material balance assays on a composite shale sample. The elemental composition of this shale oil was shown to remain unchanged on aging. Typical material balance assays from each well where core samples were taken are presented.
Kapsch, D.M.; Frye, J.O.; Nunn, E.B.
Balancing Authority Related Proposals for EIA Surveys
for EIA Surveys EIA Stakeholder Presentation June 5, 2012 . ... smart grid technologies and demand response. Require balancing authorities to post the next day
Definition: Sink Balancing Authority | Open Energy Information
Interchange, Interchange Transaction, Balancing Authority, smart grid References Glossary of Terms Used in Reliability Standards An inli LikeLike UnlikeLike You like this.Sign...
Definition: Source Balancing Authority | Open Energy Information
Transaction, Sending Balancing Authority, Interchange, smart grid References Glossary of Terms Used in Reliability Standards An inli LikeLike UnlikeLike You like this.Sign...
Control of Suspect/Counterfeit and Defective Items
This procedure implements portions of the requirements of MSC-MP-599, Quality Assurance Program Description. It establishes the Mission Support Alliance (MSA) practices for minimizing the introduction of and identifying, documenting, dispositioning, reporting, controlling, and disposing of suspect/counterfeit and defective items (S/CIs). employees whose work scope relates to Safety Systems (i.e., Safety Class [SC] or Safety Significant [SS] items), non-safety systems and other applications (i.e., General Service [GS]) where engineering has determined that their use could result in a potential safety hazard. MSA implements an effective Quality Assurance (QA) Program providing a comprehensive network of controls and verification providing defense-in-depth by preventing the introduction of S/CIs through the design, procurement, construction, operation, maintenance, and modification of processes. This procedure focuses on those safety systems, and other systems, including critical load paths of lifting equipment, where the introduction of S/CIs would have the greatest potential for creating unsafe conditions.
Sheriff, Marnelle L.
Apparatus and method for identification and recognition of an item with ultrasonic patterns from item subsurface micro-features
The present invention is a means and method for identification and recognition of an item by ultrasonic imaging of material microfeatures and/or macrofeatures within the bulk volume of a material. The invention is based upon ultrasonic interrogation and imaging of material microfeatures within the body of material by accepting only reflected ultrasonic energy from a preselected plane or volume within the material. An initial interrogation produces an identification reference. Subsequent new scans are statistically compared to the identification reference for making a match/non-match decision. 15 figs.
Perkins, R.W.; Fuller, J.L.; Doctor, S.R.; Good, M.S.; Heasler, P.G.; Skorpik, J.R.; Hansen, N.H.
Method of locating related items in a geometric space for data mining
A method for locating related items in a geometric space transforms relationships among items to geometric locations. The method locates items in the geometric space so that the distance between items corresponds to the degree of relatedness. The method facilitates communication of the structure of the relationships among the items. The method is especially beneficial for communicating databases with many items, and with non-regular relationship patterns. Examples of such databases include databases containing items such as scientific papers or patents, related by citations or keywords. A computer system adapted for practice of the present invention can include a processor, a storage subsystem, a display device, and computer software to direct the location and display of the entities. The method comprises assigning numeric values as a measure of similarity between each pairing of items. A matrix is constructed, based on the numeric values. The eigenvectors and eigenvalues of the matrix are determined. Each item is located in the geometric space at coordinates determined from the eigenvectors and eigenvalues. Proper construction of the matrix and proper determination of coordinates from eigenvectors can ensure that distance between items in the geometric space is representative of the numeric value measure of the items' similarity. 12 figs.
Hendrickson, B.A.
FY 2007 Report on Uncosted Balances
Report on Uncosted Balances Report on Uncosted Balances For Fiscal Year Ended September 30,2007 August 2008 Prepared by: Office of the Chief Financial Officer TABLE OF CONTENTS Purpose.. . . . : . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . .. . .. . .. . . . . . . . , . . , . , , . . . . , Executive Summary ... . . . .. . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . .... .. .... .... .. Threshold Analysis - Approach and Background ................... . .... .. Composition of FY 2007 Year-End Uncosted Obligations ..... .. . . . . . Explanation of Significant Threshold Variances ... ... .. . . . . . .. . .. .. . . . . . List of Acronyms.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quantifying the effectiveness of load balance algorithms
Load balance is critical for performance in large parallel applications. An imbalance on today's fastest supercomputers can force hundreds of thousands of cores to idle, and on future exascale machines this cost will increase by over a factor of a thousand. ... Keywords: framework, load balance, modeling, performance, simulation
Olga Pearce; Todd Gamblin; Bronis R. de Supinski; Martin Schulz; Nancy M. Amato
Balanced Scorecard Program | Department of Energy
Acquisition » Balanced Acquisition » Balanced Scorecard Program Balanced Scorecard Program PLEASE NOTE: This page contains links to a great deal of information on the subject of the Balanced Scorecard (BSC). It is intended to assist DOE employees, contractors and anyone who is interested in BSC methodology. Please review each area carefully so that you can get the most benefit from this page. Should you have any questions, please contact Lorri Wilkins (procurement BSC) at (202) 287-1668, or Sarah Ball (personal property BSC) at (202) 287-1563. Acquisition Guide Chapter entitled Balanced Scorecard Assessment Program I. Introduction The BSC is a conceptual framework for translating an organization's vision into a set of performance indicators distributed among four perspectives:
Deep drilling technology for hot crystalline rock
The development of Hot Dry Rock (HDR) geothermal systems at the Fenton Hill, New Mexico site has required the drilling of four deep boreholes into hot, Precambrian granitic and metamorphic rocks. Thermal gradient holes, four observation wells 200 m (600 ft) deep, and an exploration core hole 800 m (2400 ft) deep guided the siting of the four deep boreholes. Results derived from the exploration core hole, GT-1 (Granite Test No. 1), were especially important in providing core from the granitic rock, and establishing the conductive thermal gradient and heat flow for the granitic basement rocks. Essential stratigraphic data and lost drilling-fluid zones were identified for the volcanic and sedimentary rocks above the contact with the crystalline basement. Using this information drilling strategies and well designs were then devised for the planning of the deeper wells. The four deep wells were drilled in pairs, the shallowest were planned and drilled to depths of 3 km in 1975 at a bottom-hole temperature of nearly 200/sup 0/C. These boreholes were followed by a pair of wells, completed in 1981, the deepest of which penetrated the Precambrian basement to a vertical depth of 4.39 km at a temperature of 320/sup 0/C.
Rowley, J.C.
Rock-brine chemical interactions. Final report
The results of experimental interaction of powdered volcanic rock with aqueous solutions are presented at temperatures from 200 to 400/sup 0/C, 500 to 1000 bars fluid pressure, with reaction durations of approximately 30 days under controlled laboratory conditions. The aim of this research is to develop data on the kinetics and equilibria of rock solution interactions that will provide insight into the complex geochemical processes attending geothermal reservoir development, stimulation, and reinjection. The research was done in the Stanford Hydrothermal Lab using gold cell equipment of the Dickson design. This equipment inverts the solution rock mixture several times a minute to ensure thorough mixing. Solution samples were periodically withdrawn without interruption of the experimental conditions. The data from these experiments suggests a path dependent series of reactions by which geothermal fluids might evolve from meteoric or magmatic sources.
Rock melting tool with annealer section
A rock melting penetrator is provided with an afterbody that rapidly cools a molten geological structure formed around the melting tip of the penetrator to the glass transition temperature for the surrounding molten glass-like material. An annealing afterbody then cools the glass slowly from the glass transition temperature through the annealing temperature range to form a solid self-supporting glass casing. This allows thermally induced strains to relax by viscous deformations as the molten glass cools and prevents fracturing of the resulting glass liner. The quality of the glass lining is improved, along with its ability to provide a rigid impermeable casing in unstable rock formations.
Bussod, Gilles Y. (Santa Fe, NM); Dick, Aaron J. (Oakland, CA); Cort, George E. (Montrose, CO)
Category:Little Rock, AR | Open Energy Information
AR AR Jump to: navigation, search Go Back to PV Economics By Location Media in category "Little Rock, AR" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant Little Rock AR Entergy Arkansas Inc.png SVFullServiceRestauran... 71 KB SVHospital Little Rock AR Entergy Arkansas Inc.png SVHospital Little Rock... 69 KB SVLargeHotel Little Rock AR Entergy Arkansas Inc.png SVLargeHotel Little Ro... 70 KB SVLargeOffice Little Rock AR Entergy Arkansas Inc.png SVLargeOffice Little R... 71 KB SVMediumOffice Little Rock AR Entergy Arkansas Inc.png SVMediumOffice Little ... 68 KB SVMidriseApartment Little Rock AR Entergy Arkansas Inc.png SVMidriseApartment Lit... 70 KB SVOutPatient Little Rock AR Entergy Arkansas Inc.png SVOutPatient Little Ro...
Surface Energy Balance System (SEBS) Handbook
A Surface Energy Balance System (SEBS) has been installed collocated with each deployed ECOR system at the Southern Great Plains (SGP), North Slope of Alaska (NSA), Tropical Western Pacific (TWP), ARM Mobile Facility 1 (AMF1), and ARM Mobile Facility 2 (AMF2). The surface energy balance system consists of upwelling and downwelling solar and infrared radiometers within one net radiometer, a wetness sensor, and soil measurements. The SEBS measurements allow the comparison of ECOR sensible and latent heat fluxes with the energy balance determined from the SEBS and provide information on wetting of the sensors for data quality purposes.
Cook, DR
Special Study of The Department of Energy's Management of Suspect/Counterfeit Items
SPECIAL STUDY SPECIAL STUDY Independent Oversight Special Study of The Department of Energy's Management of Suspect/Counterfeit Items August 2003 OVERSIGHT Table of Contents EXECUTIVE SUMMARY ............................................................... 1 1.0 INTRODUCTION ...................................................................... 3 2.0 DOE HEADQUARTERS SUSPECT/COUNTERFEIT ITEM PROCESSES .................................................................... 6 3.0 IMPLEMENTATION OF SUSPECT/COUNTERFEIT ITEM REQUIREMENTS AT DOE SITES ................................. 13 4.0 CONCLUSIONS AND RECOMMENDATIONS ....................... 24 APPENDIX A - Supplemental Information ....................................... 30 Abbreviations Used in This Report CY Calendar Year DCIS Defense Criminal Investigative Service
Recent testing has identified the presence of hydrogen and oxygen in MIS Item 011589A. This isolated observation has effectuated concern regarding the potential for flammable gas mixtures in containers in the storage inventory. This study examines the known physicochemical characteristics of MIS Item 011589A and queries the ISP Database for items that are most similar or potentially similar. Items identified as most similar are believed to have the highest probability of being chemically and structurally identical to MIS Item 011589A. Items identified as potentially like MIS Item 011589A have some attributes in common, have the potential to generate gases, but have a lower probability of having similar gas generating characteristics. MIS Item 011589A is an oxide that was generated prior to 1990 at Rocky Flats in Building 707. It was associated with foundry processing and had an actinide assay of approximately 77%. Prompt gamma analysis of MIS Item 011589A indicated the presence of chloride, fluorine, magnesium, sodium, and aluminum. Queries based on MIS representation classification and process of origin were applied to the ISP Database. Evaluation criteria included binning classification (i.e., innocuous, pressure, or pressure and corrosion), availability of prompt gamma analyses, presence of chlorine and magnesium, percentage of chlorine by weight, peak ratios (i.e., Na:Cl and Mg:Na), moisture, and percent assay. These queries identified 15 items that were most similar and 106 items that were potentially like MIS Item 011589A. Although these queries identified containers that could potentially generate flammable gases, verification and confirmation can only be accomplished by destructive evaluation and testing of containers from the storage inventory.
Friday, G
Balance Calibration � A Method for Assigning a Direct-Reading Uncertainty to an Electronic Balance.
Paper Title: Balance Calibration � A method for assigning a direct-reading uncertainty to an electronic balance. Intended Audience: Those who calibrate or use electronic balances. Abstract: As a calibration facility, we provide on-site (at the customer�s location) calibrations of electronic balances for customers within our company. In our experience, most of our customers are not using their balance as a comparator, but simply putting an unknown quantity on the balance and reading the displayed mass value. Manufacturer�s specifications for balances typically include specifications such as readability, repeatability, linearity, and sensitivity temperature drift, but what does this all mean when the balance user simply reads the displayed mass value and accepts the reading as the true value? This paper discusses a method for assigning a direct-reading uncertainty to a balance based upon the observed calibration data and the environment where the balance is being used. The method requires input from the customer regarding the environment where the balance is used and encourages discussion with the customer regarding sources of uncertainty and possible means for improvement; the calibration process becomes an educational opportunity for the balance user as well as calibration personnel. This paper will cover the uncertainty analysis applied to the calibration weights used for the field calibration of balances; the uncertainty is calculated over the range of environmental conditions typically encountered in the field and the resulting range of air density. The temperature stability in the area of the balance is discussed with the customer and the temperature range over which the balance calibration is valid is decided upon; the decision is based upon the uncertainty needs of the customer and the desired rigor in monitoring by the customer. Once the environmental limitations are decided, the calibration is performed and the measurement data is entered into a custom spreadsheet. The spreadsheet uses measurement results, along with the manufacturer�s specifications, to assign a direct-read measurement uncertainty to the balance. The fact that the assigned uncertainty is a best-case uncertainty is discussed with the customer; the assigned uncertainty contains no allowance for contributions associated with the unknown weighing sample, such as density, static charges, magnetism, etc. The attendee will learn uncertainty considerations associated with balance calibrations along with one method for assigning an uncertainty to a balance used for non-comparison measurements.
Mike Stears
Optimization Online - The multi-item capacitated lot-sizing problem ...
Sep 21, 2005 ... Abstract: We address a multi-item capacitated lot-sizing problem with setup times and shortage costs that arises in real-world production�...
KCP installs steel cable mesh that can stop a 20 pound item traveling...
item traveling 240 mph Posted By Office of Public Affairs Construction of the Kansas City Plant at the new National Security Campus has included some unique building...
NQA-1 Requirements for Commercial Grade Item Acceptance: ICONE20-54738
Objectives are: (1) Present the DOE Chemistry and Metallurgy Research Replacement (CMRR) Project Commercial Grade Item (CGI) Dedication Process; and (2) Present CMRR Project CGI Lessons-Learned.
Van Valkenburg, Taunia S. [Los Alamos National Laboratory; Holmes, Richard A. [Los Alamos National Laboratory; Tepley, Daniel J. [Los Alamos National Laboratory; Sandquist, Gary [APPLIED SCIENCE PROFESSIONALS
Appendix B � Pre-Selected Query Items - U.S. Energy ...
Appendix B � Pre-Selected Query Items Description Memo Units Answers to Question in Part II about Alternative Fuel Vehicles This Query has the answers from
Microsoft Word - BSA_Commercial_Items_Rev13_Apr_2013.docx
3; (Apr-13) 1 of 12 BROOKHAVEN SCIENCE ASSOCIATES, LLC GENERAL TERMS AND CONDITIONS FOR COMMERCIAL ITEMS AT BROOKHAVEN NATIONAL LABORATORY Table of Contents Article 1 DEFINITIONS...
Rim Rock Wind Farm | Open Energy Information
Rim Rock Wind Farm Rim Rock Wind Farm Jump to: navigation, search Name Rim Rock Wind Farm Facility Rim Rock Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner NaturEner Developer NaturEner Energy Purchaser San Diego Gas & Electric Location Glacier and Toole Counties MT Coordinates 48.779564°, -112.061291° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.779564,"lon":-112.061291,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Hot-dry-rock geothermal resource 1980
The work performed on hot dry rock (HDR) geothermal resource evaluation, site characterization, and geophysical exploration techniques is summarized. The work was done by region (Far West, Pacific Northwest, Southwest, Rocky Mountain States, Midcontinent, and Eastern) and limited to the conterminous US.
Heiken, G.; Goff, F.; Cremer, G. (ed.)
Storage capacity in hot dry rock reservoirs
A method is described for extracting thermal energy, in a cyclic manner, from geologic strata which may be termed hot dry rock. A reservoir comprised of hot fractured rock is established and water or other liquid is passed through the reservoir. The water is heated by the hot rock, recovered from the reservoir, cooled by extraction of heat by means of heat exchange apparatus on the surface, and then re-injected into the reservoir to be heated again. Water is added to the reservoir by means of an injection well and recovered from the reservoir by means of a production well. Water is continuously provided to the reservoir and continuously withdrawn from the reservoir at two different flow rates, a base rate and a peak rate. Increasing water flow from the base rate to the peak rate is accomplished by rapidly decreasing backpressure at the outlet of the production well in order to meet periodic needs for amounts of thermal energy greater than a baseload amount, such as to generate additional electric power to meet peak demands. The rate of flow of water provided to the hot dry rock reservoir is maintained at a value effective to prevent depletion of the liquid inventory of the reservoir. 4 figs.
Brown, D.W.
Segmentation of cracks in shale rock
In this paper the use of morphological connected filters are studied for segmenting sheet- and thread-like cracks in images of shale rock. A volume formed from a stack of 2-D X-ray images is processed using 3-D attributes. The shape-preserving property ...
Erik R. Urbach; Marina Pervukhina; Leanne Bischof
TABLE OF CONTENTS A: Rock Physics and Geology. Pressure-solution models and the velocity......................................................... A3 Pressure trends of compressional-and shear-wave velocities measured measured in sands to 20 MPA.....................................................C3 Properties of pore fluids at very high pressures from equations of state. Walls & Dvorkin
Nur, Amos
A method of extracting thermal energy, in a cyclic manner, from geologic strata which may be termed hot dry rock. A reservoir comprised of hot fractured rock is established and water or other liquid is passed through the reservoir. The water is heated by the hot rock, recovered from the reservoir, cooled by extraction of heat by means of heat exchange apparatus on the surface, and then re-injected into the reservoir to be heated again. Water is added to the reservoir by means of an injection well and recovered from the reservoir by means of a production well. Water is continuously provided to the reservoir and continuously withdrawn from the reservoir at two different flow rates, a base rate and a peak rate. Increasing water flow from the base rate to the peak rate is accomplished by rapidly decreasing backpressure at the outlet of the production well in order to meet periodic needs for amounts of thermal energy greater than a baseload amount, such as to generate additional electric power to meet peak demands. The rate of flow of water provided to the hot dry rock reservoir is maintained at a value effective to prevent depletion of the liquid
Brown, Donald W. (Los Alamos, NM)
Transfer of hot dry rock technology
The Hot Dry Rock Geothermal Energy Development Program has focused worldwide attention on the facts that natural heat in the upper part of the earth's crust is an essentially inexhaustible energy resource which is accessible almost everywhere, and that practical means now exist to extract useful heat from the hot rock and bring it to the earth's surface for beneficial use. The Hot Dry Rock Program has successfully constructed and operated a prototype hot, dry rock energy system that produced heat at the temperatures and rates required for large-scale space heating and many other direct uses of heat. The Program is now in the final stages of constructing a larger, hotter system potentially capable of satisfying the energy requirements of a small, commercial, electrical-generating power plant. To create and understand the behavior of such system, it has been necessary to develop or support the development of a wide variety of equipment, instruments, techniques, and analyses. Much of this innovative technology has already been transferred to the private sector and to other research and development programs, and more is continuously being made available as its usefulness is demonstrated. This report describes some of these developments and indicates where this new technology is being used or can be useful to industry, engineering, and science.
AEDG Implementation Recommendations: Testing and Balancing | Building
Testing and Balancing Testing and Balancing The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on testing, adjusting, and balancing; heating sources; filters. Publication Date: Sunday, April 13, 2008 air_testing_and_balancing.pdf Document Details Affiliation: DOE BECP Focus: Compliance Building Type: Commercial Code Referenced: ASHRAE Standard 90.1-1999 Document type: AEDG Implementation Recommendations Target Audience: Architect/Designer Builder Contractor Engineer State: All States Contacts Web Site Policies U.S. Department of Energy
Work-Life Balance | Argonne National Laboratory
Work-Life Balance Work-Life Balance Balancing work and life means prioritizing what is important to you. Argonne supports employees who want to coordinate work, home and community activities. Lab-provided benefits that help you do that include on-site child care, a credit union, flexible work schedules, generous leave and vacation programs, and much more. A wide variety of social clubs at Argonne promote fellowship and diversity. You can work at Argonne and also have a life of interest and fulfillment. "I have good work-life balance. I spend my workday devoted to my work, and when I go home, I'm able to have a life outside work. I used to play soccer, so I'm looking to join a women's soccer team in the Chicago suburbs." - Emily Wolters, Nuclear Engineer Argonne understands that employment decisions often involve your
Definition: Receiving Balancing Authority | Open Energy Information
Balancing Authority, smart grid References Glossary of Terms Used in Reliability Standards An i LikeLike UnlikeLike You like this.Sign Up to see what your friends like. nline...
Definition: Sending Balancing Authority | Open Energy Information
Nonlinear Balance in Terrain-Following Coordinates
Potential vorticity (PV) is a powerful concept in geophysical fluid dynamics. One property of PV that makes it so powerful is that it may be inverted under certain conditions, one of which is the imposition of a balance constraint. Previous ...
Steven G. Decker
Zonal Momentum Balance at the Equator
The conventional view of equatorial dynamics requires that the zonal equatorial wind stress be balanced, in the mean, by the vertical integral of �large-scale� terms, such as the zonal pressure gradient, mesoscale eddy flux, and mean advection, ...
T. M. Dillon; J. N. Moum; T. K. Chereskin; D. R. Caldwell
Laser Rock Drilling on the History Channel - The NE Multimedia Collection
Departments > System Technologies & Diagnostics > Videos Departments > System Technologies & Diagnostics > Videos Laser Oil & Gas Well Drilling: Laser Rock Drilling on the History Channel Argonne's Laser Applications Lab and researcher Claude Reed (NE) appeared in the History Channel program "Modern Marvels: Drilling" (May 10, 2006). "Modern Marvels" relates the ingenuity, invention and imagination behind everyday items, technological breakthroughs and man-made wonders. :: Please wait until video loads completely :: Argonne Experts Dr. Claude B. Reed is one of the Experts featured in the Argonne Experts Guide. The video is in mp4 format. Closed Captioning Transcript Live Closed captioning of the video is not available; however -as an alternative- we provide a transcript of the audio portion of this video as a separate web page.
Flat-Plate Photovoltaic Balance of System | Department of Energy
Balance of System Flat-Plate Photovoltaic Balance of System August 20, 2013 - 4:29pm Addthis Complete photovoltaic (PV) energy systems are composed of three subsystems....
BalancedScorecardPerfAndMeth.pdf | Department of Energy
BalancedScorecardPerfAndMeth.pdf More Documents & Publications DEPARTMENT OF ENERGY PROCUREMENT SYSTEM FY 2002 BALANCED SCORECARD : OPAM Policy Acquisition Guides...
Esimation of field-scale thermal conductivities of unsaturated rocks from in-situ temperature data
vicinity of the heat source, and rock temperature exceededand the dry rock near the heat source. The other differencesources, heat transfer takes place through the wet rock (see
Mukhopadhyay, Sumit; Tsang, Yvonne W.; Birkholzer, Jens T.
Index Appendix 1. Sources of Information Rock properties -various sources, and list of mines in crystalline rock whichoz SOURCE EOLOGY INFORMATION MINERALOGY OF HOST ROCKS GULF
Wallenberg, H.A.
Proceedings of the Second International Symposium on Dynamics of Fluids in Fractured Rock
toward the heat source, or into the rock underlying the heatcharacterizing DNAPL source zones in fractured rock at theby a point source injection in fractured rock with multiple
Faybishenko, Boris; Witherspoon, Paul A.
Seismic and Acoustic Investigations of Rock Fall Initiation, Processes, and Mechanics
systems �and �rock �fall �source �and �impact �areas, �it �possible �to �a � rock � fall � source � area � in � the �possible �to �a �rock � fall �source �area. � �There �are �
Zimmer, Valerie Louise
Little Rock, Arkansas Small Business IT Security Workshop
... Twitter, Facebook & Blogs Free Workshop helps Small Business Owners Reduce Cyber Threats LITTLE ROCK--The US ...
CRC handbook of physical properties of rocks. Volume III
This book presents topics on: Density of rocks and minerals, includes histograms of density ranges; elastic constants of minerals, elastic moduli, thermal properties; inelastic properties, strength and rheology for rocks and minerals, rock mechanics and friction, and stress-strain relations; radioactivity, decay constants and heat production of isotope systems in geology; seismic attenuation, in rocks, minerals, and the earth, with application to oil exploration and terrestrial studies; and index.
Carmichael, R.S.
Wind Integration Forum June 6, 2011 Action Items Update December, 2011
Wind Integration Forum June 6, 2011 Action Items Update December, 2011 The action items from the June 6 Wind Integration Steering Committee are repeated below, followed by brief summaries of progress concern over possible impacts on grid stability from the growing wind fleet. BPA will report back
Modeling and optimization for the joint replenishment and delivery problem with heterogeneous items
In the real world, some heterogeneous items are prohibited from being transported together or penalty cost occurs when transporting them together. This paper firstly proposes the joint replenishment and delivery (JRD) model where a warehouse procures ... Keywords: Adaptive hybrid differential evolution, Delivery, Genetic algorithm, Heterogeneous items, Joint replenishment
Hui Qu, Lin Wang, Yu-Rong Zeng
A digital rock density map of New Zealand
Digital geological maps of New Zealand (QMAP) are combined with 9256 samples with rock density measurements from the national rock catalogue PETLAB and supplementary geological sources to generate a first digital density model of New Zealand. This digital ... Keywords: Crust, Database, Density, Geological mapping, Gravimetry, Rock types
Robert Tenzer; Pascal Sirguey; Mark Rattenbury; Julia Nicolson
Rock River Wind Farm | Open Energy Information
Wind Farm Wind Farm Jump to: navigation, search Name Rock River Wind Farm Facility Rock River Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Shell Wind Energy Developer SeaWest Energy Purchaser PacifiCorp Location Arlington and Carbon Counties WY Coordinates 41.6996°, -107.003° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.6996,"lon":-107.003,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
A Phased Array Approach to Rock Blasting
A series of laboratory-scale simultaneous two-hole shots was performed in a rock simulant (mortar) to record the shock wave interference patterns produced in the material. The purpose of the project as a whole was to evaluate the usefulness of phased array techniques of blast design, using new high-precision delay technology. Despite high-speed photography, however, we were unable to detect the passage of the shock waves through the samples to determine how well they matched the expected interaction geometry. The follow-up mine-scale tests were therefore not conducted. Nevertheless, pattern analysis of the vectors that would be formed by positive interference of the shockwaves from multiple charges in an ideal continuous, homogeneous, isotropic medium indicate the potential for powerful control of blast design, given precise characterization of the target rock mass.
Leslie Gertsch; Jason Baird
Low Pore Connectivity in Natural Rock
As repositories for CO? and radioactive waste, as oil and gas reservoirs, and as contaminated sites needing remediation, rock formations play a central role in energy and environmental management. The connectivity of the rock's porespace strongly affects fluid flow and solute transport. This work examines pore connectivity and its implications for fluid flow and chemical transport. Three experimental approaches (imbibition, tracer concentration profiles, and imaging) were used in combination with network modeling. In the imbibition results, three types of imbibition slope [log (cumulative imbibition) vs. log (imbibition time)] were found: the classical 0.5, plus 0.26, and 0.26 transitioning to 0.5. The imbibition slope of 0.26 seen in Indiana sandstone, metagraywacke, and Barnett shale indicates low pore connectivity, in contrast to the slope of 0.5 seen in the well-connected Berea sandstone. In the tracer profile work, rocks exhibited different distances to the plateau porosity, consistent with the pore connectivity from the imbibition tests. Injection of a molten metal into connected pore spaces, followed by 2-D imaging of the solidified alloy in polished thin sections, allowed direct assessment of pore structure and lateral connection in the rock samples. Pore-scale network modeling gave results consistent with measurements, confirming pore connectivity as the underlying cause of both anomalous behaviors: imbibition slope not having the classical value of 0.5, and accessible porosity being a function of distance from the edge. A poorly connected porespace will exhibit anomalous behavior in fluid flow and chemical transport, such as a lower imbibition slope (in air�water system) and diffusion rate than expected from classical behavior.
Hu, Qinhong; Ewing, Robert P.; Dultz, Stefan
Dynamic rock fragmentation: oil shale applications
Explosive rock fragmentation techniques used in many resource recovery operations have in the past relied heavily upon traditions of field experience for their design. As these resources, notably energy resources, become less accessible, it becomes increasingly important that fragmentation techniques be optimized and that methods be developed to effectively evaluate new or modified explosive deployment schemes. Computational procedures have significant potential in these areas, but practical applications must be preceded by a thorough understanding of the rock fracture phenomenon and the development of physically sound computational models. This paper presents some of the important features of a rock fragmentation model that was developed as part of a program directed at the preparation of subterranean beds for in situ processing of oil shale. The model, which has been implemented in a two-dimensional Lagrangian wavecode, employs a continuum damage concept to quantify the degree of fracturing and takes into account experimental observations that fracture strength and fragment dimensions depend on tensile strain rates. The basic premises of the model are considered in the paper as well as some comparisons between calculated results and observations from blasting experiments.
Boade, R. R.; Grady, D. E.; Kipp, M. E.
Gage for measuring displacements in rock samples
A gage for measuring diametral displacement within a rock sample for use in a rock mechanics laboratory and in the field, comprises a support ring housing a linear variable differential transformer, a mounting screw, and a leaf spring. The mounting screw is adjustable and defines a first point of contact with the rock sample. The leaf spring has opposite ends fixed to the inner periphery of the mounting ring. An intermediate portion of the leaf spring projecting radially inward from the ring is formed with a dimple defining a second point of contact with the sample. The first and second points of contact are diametrically opposed to each other. The LVDT is mounted in the ring with its axis parallel to the line of measurement and its core rod received in the dimple of the leaf spring. Any change in the length of the line between the first and second support points is directly communicated to the LVDT. The leaf spring is rigid to completely support lateral forces so that the LVDT is free of all load for improved precision.
Holcomb, David J. (Albuquerque, NM); McNamee, Michael J. (Albuquerque, NM)
Los Alamos hot dry rock geothermal project
The greatest potential for geothermal energy is the almost unlimited energy contained in the vast regions of hot, but essentially impermeable, rock within the first six or seven km of the Earth's crust. For the past five years, the Los Alamos Scientific Laboratory has been investigating and developing a practical, economical and environmentally acceptable method of extracting this energy. By early 1978, a 10 MW (thermal) heat extraction experiment will be in operation. In the Los Alamos concept, a man-made geothermal reservoir is formed by drilling into a region of suitably hot rock, and then creating within the rock a very large surface for heat transfer by large-scale hydraulic-fracturing techniques. After a circulation loop is formed by drilling a second hole to intersect the fractured region, the heat contained in this reservoir is brought to the surface by the buoyant closed-loop circulation of water. The water is kept liquid throughout the loop by pressurization, thereby increasing the rate of heat transport up the withdrawal hole compared to that possible with steam.
Brown, D.W.; Pettitt, R.A.
Development of hot dry rock resources
The LASL Hot Dry Rock Geothermal Energy Project is the only U.S. field test of this geothermal resource. In the LASL concept, a man-made geothermal reservoir would be formed by drilling a deep hole into relatively impermeable hot rock, creating a large surface area for heat transfer by fracturing the rock hydraulically, then drilling a second hole to intersect the fracture to complete the circulation loop. In 1974, the first hole was drilled to a depth of 2929 m (9610 ft) and a hydraulic fracture was produced near the bottom. In 1975, a second hole was directionally drilled to intersect the fracture. Although the desired intersection was not achieved, a connection was made through which water was circulated. After a year's study of the fracture system, drilling began again in April 1977 and an improved connection was achieved. In September of 1977 a 5 MW (thermal) heat extraction and circulation experiment was conducted for 100 h as a preliminary test of the concept. An 1800-h circulation experiment was concluded on April 13, 1978 to determine temperature-drawdown, permeation water loss and flow characteristics of the pressurized reservoir, to examine chemistry changes in the circulating fluid, and to monitor for induced seismic effects.
Pettitt, R.A.; Tester, J.W.
A gage for measuring diametral displacement within a rock sample for use in a rock mechanics laboratory and in the field, comprises a support ring housing a linear variable differential transformer (LVDT), a mounting screw, and a leaf spring. The mounting screw is adjustable and defines a first point of contact with the rock sample. The leaf spring has opposite ends fixed to the inner periphery of the mounting ring. An intermediate portion of the leaf spring projecting radially inward from the ring is formed with a dimple defining a second point of contact with the sample. The first and second points of contact are diametrically opposed to each other. The LVDT is mounted in the ring with its axis parallel to the line of measurement and its core rod received in the dimple of the leaf spring. Any change in the length of the line between the first and second support points is directly communicated to the LVDT. The leaf spring is rigid to completely support lateral forces so that the LVDT is free of all load for improved precision.
Holcomb, D.J.; McNamee, M.J.
Calculation of explosive rock breakage: oil shale
Improved efficiency in explosive rock breakage becomes increasingly important as mining costs and the need to tap underground resources continue to grow. Industry has recognized this need for many years and has done a great deal in developing new products and new blasting techniques, generally by purely empirical means. One particular application that has received added attention within the past several years, and one that lends itself to a more objective theoretical study, is explosive fracture of oil shale for conventional and in situ fossil energy recovery. Numerical calculation of oil shale fracturization with commercial explosives has the potential to add to an objective understanding of the breakage process. Often, in such numerical studies, only one or two parts of the total problem are addressed with any degree of sophistication or completeness. Here an attempt is made to treat the entire problem, i.e., explosive characterization, constitutive behavior of intact rock, and a mathematical description of rock fracture. The final results are two-dimensional calculations of explosively induced fracture damage in oil shale.
Johnson, J.N.
Artificial geothermal reservoirs in hot volcanic rock
S>Some recent results from the Los Alamos program in which hydraulic fracturing is used for the recovery of geothermal energy are discussed. The location is about 4 kilometers west and south of the ring fault of the enormous Jemez Caldera in the northcentral part of New Mexico. It is shown that geothermal energy may be extracted from hot rock that does not contain circulating hot water or steam and is relatively impermeable. A fluid is pumped at high pressure into an isolated section of a wellbore. If the well is cased the pipe in this pressurized region is perforated as it is in the petroleum industry, so that the pressure may be applied to the rock, cracking it. A second well is drilled a few hundred feet away from the first. Cold water is injected through the first pipe, circulates through the crack, and hot water returns to the surface through the second pipe. Results are described and circumstances are discussed under which artiflcial geothermal reservoirs might be created in the basaltic rock of Hawaii. (MCW)
Aamodt, R.L.
Hot Dry Rock Geothermal Energy Development Program
During Fiscal Year 1987, emphasis in the Hot Dry Rock Geothermal Energy Development Program was on preparations for a Long-Term Flow Test'' of the Phase II'' or Engineering'' hot dry rock energy system at Fenton Hill, New Mexico. A successful 30-day flow test of the system during FY86 indicated that such a system would produce heat at a temperature and rate that could support operation of a commercial electrical power plant. However, it did not answer certain questions basic to the economics of long-term operation, including the rate of depletion of the thermal reservoir, the rate of water loss from the system, and the possibility of operating problems during extended continuous operation. Preparations for a one-year flow test of the system to answer these and more fundamental questions concerning hot dry rock systems were made in FY87: design of the required surface facilities; procurement and installation of some of their components; development and testing of slimline logging tools for use through small-diameter production tubing; research on temperature-sensitive reactive chemical tracers to monitor thermal depletion of the reservoir; and computer simulations of the 30-day test, extended to modeling the planned Long-Term Flow Test. 45 refs., 34 figs., 5 tabs.
Smith, M.C.; Hendron, R.H.; Murphy, H.D.; Wilson, M.G.
An Analysis of Load Balancing Technology - Comparing LSF with other Load Balancing Software Packages
This paper examines what the load balancing needs of organizations are today, the solution LSF (Load Sharing Facility) provides for them, and how other currently available load balancing products compare to LSF. Jean Suplick (email@example.com) CXSOFT Richardson, Texas January 1994 Why clusters?
Jean Suplick
Balance Engineering - Eli Lilly Teaming Profile
Industrial SPP / Partner Teaming Profile Industrial SPP / Partner Teaming Profile UService/Product Provider Balance Engineering Inc. 3711 East Carmel Drive Carmel, IN 46033 Business: Consulting Engineering Jack F. Staley President Phone: 317-844-3178 Email: firstname.lastname@example.com U I ndustrial Partner Eli Lilly and Company Lilly Corporate Center Indianapolis, IN 46285 Business: Pharmaceuticals David S. Drzewiecki Group Leader, Energy & Utilities Phone: 317-433-0336 Email: firstname.lastname@example.com Balance Engineering identifies $3 million in energy savings at Lilly facility Project Scope Balance Engineering conducted a facility energy assessment of the Eli Lilly Clinton Laboratories, a large multi-building pharmaceutical campus. The goals of the assessment were to determine the major uses of
Experimentally determined rock-fluid interactions applicable to a natural hot-dry-rock geothermal system
The field program cnsists of experiments in which hot rock of low permeability is hydraulically fractured between two wellbores. Water is circulated from one well to the other through the fractured hot rock. Our field experiments are designed to test reservoir engineering parameters such as heat-extraction rates, water-loss rates, flow characteristics including impedance and buoyancy, seismic activity, and fluid chemistry. Laboratory experiments were designed to provide information on the mineral-water reactivity encountered during the field program. Two experimental circulation systems tested the rates of dissolution and alteration during dynamic flow. Solubility of rock in agitated systems was studied. Moreover, pure minerals, samples of the granodiorite from the actual reservoir, and Tijeras Canyon granite have been reacted with distilled water and various solutions of NaCl, NaOH, and Na/sub 2/CO/sub 3/. The results of these experimental systems are compared to the observations made in field experiments done within the hot dry rock reservoir at a depth of approximately 3 km where the initial rock temperature was 150 to 200/sup 0/C.
Charles, R.W.; Grigsby, C.O.; Holley, C.E. Jr.; Tester, J.W.; Blatz, L.A.
Category:Rock Lab Analysis | Open Energy Information
source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Rock Lab Analysis Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Rock Lab Analysis page? For detailed information on exploration techniques, click here. Category:Rock Lab Analysis Add.png Add a new Rock Lab Analysis Technique Pages in category "Rock Lab Analysis" The following 9 pages are in this category, out of 9 total. C Core Analysis Cuttings Analysis I Isotopic Analysis- Rock O Over Core Stress P Paleomagnetic Measurements Petrography Analysis R Rock Density X X-Ray Diffraction (XRD) X-Ray Fluorescence (XRF)
DIMENSIONAL MODELING OF LASER SPALLATION DRILLING OF ROCKS DIMENSIONAL MODELING OF LASER SPALLATION DRILLING OF ROCKS P532 Zhiyue Xu, Yuichiro Yamashita 1 , and Claude B. Reed Argonne National Laboratory, Argonne, IL 60439, USA 1 Now with Kyushu University, Japan Abstract High power lasers can weaken, spall, melt and vaporize natural earth materials with thermal spallation being the most energy efficient rock removal mechanism. Laser rock spallation is a very complex phenomenon that depends on many factors. Computer numerical modeling would provides great tool to understand the fundamental of this complex phenomenon, which is crucial to the success of its applications. Complexity of modeling laser rock spallation is due to: 1) rock is a porous media, to which traditional theories of heat transfer and rock mechanics can not be directly
Goa, India Permeability of Charnokite Rock at High Temperatures
ABSTRACT: Permeability at high temperature is a very important parameter to be considered for designing underground high level nuclear waste repository (HLW) in rock mass. The surrounding rock mass is exposed to heat radiated by HLW when it is buried underground and development or extension of micro-cracks takes place in the host rock due to rise in temperature. Keeping this in view, the permeability study was conducted for Charnokite rock at high temperatures in the range from room temperature, 30 to 200 o C. The cylindrical rock samples of 36mm diameter and 150mm in length were used as per the required size for the equipment permeameter, TEMCO, USA. Total thirty rock samples were tested at various temperatures using nitrogen gas as fluid. The permeability tests were conducted at confining pressure of around 4MPa in order to simulate the horizontal in situ stress conditions in Charnokite rock at the depth of 400m for construction of HLW repository. 1
R. D. Dwivedi; R. K. Goel; A. Swarup; V. V. R. Prasad; R. K. Bajpai; P. K. Narayan; V. Arumugam
Mechanical and acoustic properties of weakly cemented granular rocks
This paper presents the results of laboratory measurements on the mechanical and acoustic properties of weakly cemented granular rock. Artificial rock samples were fabricated by cementing sand and glass beads with sodium silicate binder. During uniaxial compression tests, the rock samples showed stress-strain behavior which was more similar to that of soils than competent rocks, exhibiting large permanent deformations with frictional slip. The mechanical behavior of the samples approached that of competent rocks as the amount of binder was increased. For very weak samples, acoustic waves propagating in these rocks showed very low velocities of less than 1000 m/sec for compressional waves. A borehole made within this weakly cemented rock exhibited a unique mode of failure that is called ''anti-KI mode fracture'' in this paper. The effect of cementation, grain type, and boundary conditions on this mode of failure was also examined experimentally.
Nakagawa, S.; Myer, L.R.
The purpose of this Analysis and Model Report (AMR) is to document Rock Properties Model (RPM) 3.1 with regard to input data, model methods, assumptions, uncertainties and limitations of model results, and qualification status of the model. The report also documents the differences between the current and previous versions and validation of the model. The rock properties models are intended principally for use as input to numerical physical-process modeling, such as of ground-water flow and/or radionuclide transport. The constraints, caveats, and limitations associated with this model are discussed in the appropriate text sections that follow. This work was conducted in accordance with the following planning documents: WA-0344, ''3-D Rock Properties Modeling for FY 1998'' (SNL 1997, WA-0358), ''3-D Rock Properties Modeling for FY 1999'' (SNL 1999), and the technical development plan, Rock Properties Model Version 3.1, (CRWMS M&O 1999c). The Interim Change Notice (ICNs), ICN 02 and ICN 03, of this AMR were prepared as part of activities being conducted under the Technical Work Plan, TWP-NBS-GS-000003, ''Technical Work Plan for the Integrated Site Model, Process Model Report, Revision 01'' (CRWMS M&O 2000b). The purpose of ICN 03 is to record changes in data input status due to data qualification and verification activities. These work plans describe the scope, objectives, tasks, methodology, and implementing procedures for model construction. The constraints, caveats, and limitations associated with this model are discussed in the appropriate text sections that follow. The work scope for this activity consists of the following: (1) Conversion of the input data (laboratory measured porosity data, x-ray diffraction mineralogy, petrophysical calculations of bound water, and petrophysical calculations of porosity) for each borehole into stratigraphic coordinates; (2) Re-sampling and merging of data sets; (3) Development of geostatistical simulations of porosity; (4) Generation of derivative property models via linear coregionalization with porosity; (5) Post-processing of the simulated models to impart desired secondary geologic attributes and to create summary and uncertainty models; and (6) Conversion of the models into real-world coordinates. The conversion to real world coordinates is performed as part of the integration of the RPM into the Integrated Site Model (ISM) 3.1; this activity is not part of the current analysis. The ISM provides a consistent volumetric portrayal of the rock layers, rock properties, and mineralogy of the Yucca Mountain site and consists of three components: (1) Geologic Framework Model (GFM); (2) RPM, which is the subject of this AMR; and (3) Mineralogic Model. The interrelationship of the three components of the ISM and their interface with downstream uses are illustrated in Figure 1. Figure 2 shows the geographic boundaries of the RPM and other component models of the ISM.
Clinton Lum
Simulation of fluid-rock interactions in a geothermal basin. Final report. [QUAGMR (quasi-active geothermal reservoir)
General balance laws and constitutive relations are developed for convective hydrothermal geothermal reservoirs. A fully interacting rock-fluid system is considered; typical rock-fluid interactions involve momentum and energy transfer and the dependence of rock porosity and permeability upon the fluid and rock stresses. The mathematical model also includes multiphase (water/steam) effects. A simple analytical model is employed to study heat transfer into/or from a fluid moving in a porous medium. Numerical results show that for fluid velocities typical of geothermal systems (Reynolds number much less than 10), the fluid and the solid may be assumed to be in local thermal equilibrium. Mathematical formalism of Anderson and Jackson is utilized to derive a continuum species transport equation for flow in porous media; this method allows one to delineate, in a rigorous manner, the convective and diffusive mechanisms in the continuum representation of species transport. An existing computer program (QUAGMR) is applied to study upwelling of hot water from depth along a fault; the numerical results can be used to explain local temperature inversions occasionally observed in bore hole measurements.
Garg, S.K.; Blake, T.R.; Brownell, D.H. Jr.; Nayfeh, A.H.; Pritchett, J.W.
Organic matter characteristics of CenomanianTuronian source rocks: implications for petroleum and gas
and shale source rocks . In: Petroleum Geochemistry and Source Rock Potential of Carbonate Rocks (Ed. by G of petroleum . In: Petroleum Geochemistry and Source Rock Potential of Carbonate Rocks (Ed. by G. Palacas of petroleum in Mesozoic reservoirs to carbonate source rocks of Jurassic Smackover Formation, southwestern
Paris-Sud XI, Université de
A balanced approach to IT project management
This research focuses on existing project management structured methods and practices for improving the design, implementation and success of projects, with a view to uncovering methodologies suited to address the particular needs and problems of IT ... Keywords: I.S. projects, balanced scorecard, management, performance, project management, project performance
Susan Brock; Danyal Hendricks; Stephen Linnell; Derek Smith
Data centers and energy balance in Finland
Rapid growth of computing during the last few decades has led to a significant increase in power consumption. With increasing operational costs, the data center industry has started to actively search for efficiency improvements to slow down the rising ... Keywords: free cooling,Data centers,energy balance
Tuomo Malkamaki; Seppo J. Ovaska
Electric grid balancing through lowcost workload migration
Energy production must continuously match demand on the electric grid. A deficiency can lead to service disruptions, and a surplus can place tremendous stress on grid components, potentially causing major blackouts. To manage this balance, grid operators ... Keywords: data centers, demand response, smart grid
David Chiu; Christopher Stewart; Bart McManus
Pressure balance at the magnetopause: Experimental studies
The pressure balance at the magnetopause is formed by magnetic field and plasma in the magnetosheath, on one side, and inside the magnetosphere, on the other side. In the approach of dipole earth's magnetic field configuration and gas-dynamics solar wind flowing around the magnetosphere, the pressure balance predicts that the magnetopause distance R depends on solar wind dynamic pressure Pd as a power low R ~ Pd^alpha, where the exponent alpha=-1/6. In the real magnetosphere the magnetic filed is contributed by additional sources: Chapman-Ferraro current system, field-aligned currents, tail current, and storm-time ring current. Net contribution of those sources depends on particular magnetospheric region and varies with solar wind conditions and geomagnetic activity. As a result, the parameters of pressure balance, including power index alpha, depend on both the local position at the magnetopause and geomagnetic activity. In addition, the pressure balance can be affected by a non-linear transfer of the solar ...
Suvorova, A V
Lifeline-based global load balancing
On shared-memory systems, Cilk-style work-stealing has been used to effectively parallelize irregular task-graph based applications such as Unbalanced Tree Search (UTS). There are two main difficulties in extending this approach to distributed memory. ... Keywords: distributed work-stealing, global load balancing, uts, x10
Vijay A. Saraswat; Prabhanjan Kambadur; Sreedhar Kodali; David Grove; Sriram Krishnamoorthy
On dynamic load balancing on graphics processors
To get maximum performance on the many-core graphics processors it is important to have an even balance of the workload so that all processing units contribute equally to the task at hand. This can be hard to achieve when the cost of a task is not known ...
Daniel Cederman; Philippas Tsigas
Target assistance for subtly balancing competitive play
In games where skills such as targeting are critical to winning, it is difficult for players with different skill levels to have a competitive and engaging experience. Although several mechanisms for accommodating different skill levels have been proposed, ... Keywords: competition, game balance, game design, target assistance
Scott Bateman; Regan L. Mandryk; Tadeusz Stach; Carl Gutwin
??The objective of this thesis is to solve a multiple-item, one-retailer inventory control and supplier selection problem with multiple constraints and uncertainties. For each item,� (more)
Zhu, Rongjia
Plant Support Engineering: Guidance for Managing the Impact of Procured Item Quality Issues on Generating Asset Economic Performance
In 2007, EPRI Plant Support Engineering (PSE) published Technical Update 1015171, Procured Item Quality Initiative, Initial Findings, as the initial output from the Technical Advisory Group (TAG) for the EPRI Procured Item Quality Initiative. The update categorized data about procured item quality issues provided by TAG members, summarized the analysis performed, and provided initial conclusions. In addition, the update identified types of items for which quality concerns exist and summarized potential c...
Adsorption of water vapor on reservoir rocks
Progress is reported on: adsorption of water vapor on reservoir rocks; theoretical investigation of adsorption; estimation of adsorption parameters from transient experiments; transient adsorption experiment -- salinity and noncondensible gas effects; the physics of injection of water into, transport and storage of fluids within, and production of vapor from geothermal reservoirs; injection optimization at the Geysers Geothermal Field; a model to test multiwell data interpretation for heterogeneous reservoirs; earth tide effects on downhole pressure measurements; and a finite-difference model for free surface gravity drainage well test analysis.
Hot dry rock venture risks investigation:
This study assesses a promising resource in central Utah as the potential site of a future commerical hot dry rock (HDR) facility for generating electricity. The results indicate that, if the HDR reservoir productivity equals expectations based on preliminary results from research projects to date, a 50 MWe HDR power facility at Roosevelt Hot Springs could generate power at cost competitive with coal-fired plants. However, it is imperative that the assumed productivity be demonstrated before funds are committed for a commercial facility. 72 refs., 39 figs., 38 tabs.
Greener Commercial A/C Units Becoming a Cool Item | Department of Energy
Greener Commercial A/C Units Becoming a Cool Item Greener Commercial A/C Units Becoming a Cool Item Greener Commercial A/C Units Becoming a Cool Item July 1, 2010 - 5:11pm Addthis Greener Commercial A/C Units Becoming a Cool Item Stephen Graff Former Writer & editor for Energy Empowers, EERE A new federal tax credit is helping McQuay International expand its line of energy-efficient HVAC products at two of its plants and bring back furloughed workers. With the help of a 48C manufacturing tax credit worth $2 million under the American Recovery and Reinvestment Act, McQuay's Minnesota and Virginia plants have been or will be upgraded and expanded to produce new lines of energy efficient products. The tax credit is playing a role, but offering a bigger-and more efficient-selection of HVAC products also came down to basic economics:
DOCKET: A-98-49 Item: II-B1-24
DOCKET: A-98-49 Item: II-B1-24 EDOCKET NO: EPA-HQ-OAR-2009-0330 TECHNICAL SUPPORT DOCUMENT ........................................................................15 3.3.3 Organic Ligands
DOCKET: A-98-49 Item: II-B2-23
DOCKET: A-98-49 Item: II-B2-23 EDOCKET NO: EPA-HQ-OAR-2009-0330 TECHNICAL SUPPORT DOCUMENT ......................................................................... 7-2 7.1.2 Organic Ligands
MIP-based heuristics for multi-item capacitated lot-sizing problem ...
is attached to each item as well as a variable unit production cost and a ... the safety stock deficits as well as the setup, the inventory and the production costs.
NERSC Users Group Meetings June 5-7, 2000 Notes and Action Items
Items Report on the NUGEX business meeting of June 6, 2000, in Oak Ridge Minute notes by Bas Braams First of all, many thanks to the organizers of the preceding NUG meeting:...
Greenland Ice Sheet Mass Balance Reconstruction. Part II: Surface Mass Balance (1840�2010)
Meteorological station records, ice cores, and regional climate model output are combined to develop a continuous 171-yr (1840�2010) reconstruction of Greenland ice sheet climatic surface mass balance (Bclim) and its subcomponents including near-...
Jason E. Box
Greenland ice sheet mass balance reconstruction. Part II: surface mass balance (1840-2010)
Meteorological station records, ice cores, and regional climate model output are combined to develop a continuous 171-year (1840-2010) reconstruction of Greenland ice sheet climatic surface mass balance (Bclim) and its sub-components including ...
Plant Engineering: Guidelines for Establishing, Maintaining, and Extending the Shelf Life Capability of Limited Life Items
In accordance with 10CFR50 Appendix B, 10CFR71, and 10CFR72, nuclear utilities have a commitment to establish and maintain material control programs to assure the safety and reliability of generation facilities. Economic considerations demand that shelf life for a limited life item be maximized without affecting plant safety. Once shelf life is established, a utility may need to evaluate the usefulness of an item with an expired shelf life. In addition, technical incongruities may shorten the remaining s...
Rock mechanics contributions from defense programs
An attempt is made at illustrating the many contributions to rock mechanics from US defense programs, over the past 30-plus years. Large advances have been achieved in the technology-base area covering instrumentation, material properties, physical modeling, constitutive relations and numerical simulations. In the applications field, much progress has been made in understanding and being able to predict rock mass behavior related to underground explosions, cratering, projectile penetration, and defense nuclear waste storage. All these activities stand on their own merit as benefits to national security. But their impact is even broader, because they have found widespread applications in the non-defense sector; to name a few: the prediction of the response of underground structures to major earthquakes, the physics of the earth`s interior at great depths, instrumentation for monitoring mine blasting, thermo-mechanical instrumentation useful for civilian nuclear waste repositories, dynamic properties of earthquake faults, and transient large-strain numerical modeling of geological processes, such as diapirism. There is not pretense that this summary is exhaustive. It is meant to highlight success stories representative of DOE and DOD geotechnical activities, and to point to remaining challenges.
Heuze, F.E.
Hot dry rock geothermal heat extraction
A man-made geothermal reservoir has been created at a depth of 2.7 km in hot, dry granite by hydraulic fracturing. The system was completed by directionally drilling a second well in close proximity with the top of the vertical fracture. In early 1978 heat was extracted from this reservoir for a period of 75 days. During this period thermal power was produced at an average rate of 4 MW(t). Theoretical analysis of th measured drawdown suggests a total fracture heat transfer area of 16,000 m/sup 2/. Viscous impedance to through-flow declined continuously so that at the end of the experiment this impedance was only one-fifth its initial value. Water losses to the surrounding rock formation also decreased continuously, and eventually this loss rate was less than 1% of the circulated flow rate. Geochemical analyses suggest that, with scale up of the heat transfer area and deeper, hotter reservoirs, hot dry rock reservoirs can ultimately produce levels of power on a commercial scale.
Murphy, H.D.
Hot Dry Rock at Fenton Hill, USA
The Hot Dry Rock Geothermal Energy Project began in the early 1970's with the objective of developing a technology to make economically available the large ubiquitous thermal energy of the upper earth crust. The program, operated by the Los Alamos National Laboratory, has been funded by the Department of Energy (and its predecessors) and for a few years with participation by West Germany and Japan. An energy reservoir was accessed by drilling and hydraulically fracturing in the Precambrian basement rock at Fenton Hill, outside the Valles Caldera of north-central New Mexico. Water was circulated through the reservoir (Phase 1, 1978--1980) producing up to 5 MWt at 132/degree/C. A second (Phase 2) reservoir has been established with a deeper pair of holes and an initial flow test completed producing about 10 MWt at 190/degree/C. These accomplishments have been supported and paralleled by developments in drilling, well completion and instrumentation hardware. Acoustic or microseismic fracture mapping and geochemistry studies in addition to hydraulic and thermal data contribute to reservoir analyses. Studies of some of the estimated 430,000 quads of HDR resources in the United States have been made with special attention focused on sites most advantageous for early development. 17 refs., 3 figs., 1 tab.
The US Hot Dry Rock project
The Hot Dry Rock geothermal energy project began in the early 1970's with the objective of developing a technology to make economically available the large ubiquitous thermal energy of the upper earth crust. The program has been funded by the Department of Energy (and its predecessors) and for a few years with participation by West Germany and Japan. An energy reservoir was accessed by drilling and hydraulically fracturing in the precambrian basement rock outside the Valles Caldera of north-central New Mexico. Water was circulated through the reservoir (Phase I, 1978-1980) producing up to 5 MWt at 132/sup 0/C. A second (Phase II) reservoir has been established with a deeper pair of holes and an initial flow test completed producing about 10 MWt at 190/sup 0/C. These accomplishments have been supported and paralleled by developments in drilling, well completion and instrumentation hardware. Acoustic or microseismic fracture mapping and geochemistry studies in addition to hydraulic and thermal data contribute to reservoir analyses. Studies of some of the estimated 430,000 quads of HDR resources in the United States have been made with special attention focused on sites most advantageous for early development.
Thermal conductivity of rocks associated with energy extraction from hot dry rock geothermal systems
Results of thermal conductivity measurements are given for 14 drill core rock samples taken from two exploratory HDR geothermal wellbores (maximum depth of 2929 m (9608 ft) drilled into Precambrian granitic rock in the Jemez Mountains of northern New Mexico. These samples have been petrographically characterized and in general represent fresh competent Precambrian material of deep origin. Thermal conductivities, modal analyses, and densities are given for all core samples studied under dry and water-saturated conditions. Additional measurements are reported for several sedimentary rocks encountered in the upper 760 m (2500 ft) of that same region. A cut-bar thermal conductivity comparator and a transient needle probe were used for the determinations with fused quartz and Pyroceram 9606 as the standards. The maximum temperature range of the measurements was from the ice point to 250/sup 0/C. The measurements on wet, water-saturated rock were limited to the temperature range below room temperature. Conductivity values of the dense core rock samples were generally within the range from 2 to 2.9 W/mK at 200/sup 0/C. Excellent agreement was achieved between these laboratory measurements of thermal conductivity and those obtained by in situ measurements used in the HDR wellbores. By using samples of sufficient thickness to provide a statistically representative heat flow path, no difference between conductivity values and their temperature coefficients for orthogonal directions (heat flow parallel or perpendicular to core axis) was observed. This isotropic behavior was even found for highly foliated gneissic specimens. Estimates of thermal conductivity based on a composite dispersion analysis utilizing pure minerallic phase conductivities and detailed modal analyses usually agreed to within 9 percent of the experimental values.
Sibbitt, W.L.; Dodson, J.G.; Tester, J.W.
Solar Pilot Plant, Phase I. Preliminary design report. Volume VI. Electrical power generation; master control subsystems; balance of plant CDRL item 2
The Honeywell electrical power generation subsystem centers on a General Electric dual admission, triple extraction turbine generator sized to the output requirements of the Pilot Plant. The turbine receives steam from the receiver subsystem and/or the thermal storage subsystem and supplies those subsystems with feedwater. The turbine condensor is wet cooled. The plant control system consists of a coordinated digital master and subsystem digital/analog controls. The remainder of the plant, work spaces, maintenance areas, roads, and reception area are laid out to provide maximum convenience compatible with utility and safety. Most of the activities are housed in a complex around the base of the receiver tower. This volume contains a description of the relationship of the electrical power generation subsystem to the rest of the plant, the design methodology and evolution, the interface integration and control, and the operation and maintenance procedures.
Seepage into drifts in unsaturated fractured rock at Yucca Mountain
Fractured Rock at Yucca Mountain Jens Birkholzer, Guomin Lrepository site at Yucca Mountain, Nevada, as it is locatedclimate conditions at Yucca Mountain. The numerical study is
Birkholzer, Jens; Li, Guomin; Tsang, Chin-Fu; Tsang, Yvonne
Rock Sampling At San Francisco Volcanic Field Area (Warpinski...
the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify potential drilling...
Carbonation Mechanism of Reservoir Rock by Supercritical Carbon...
Technologies Project Type Topic 2 Supercritical Carbon Dioxide Reservoir Rock Chemical Interactions Project Description Supercritical CO2 is currently becoming a more...
Rock Sampling At Yellowstone Region (Hellman & Ramsey, 2004)...
Hot Springs And Associated Deposits In Yellowstone National Park Using Aster And Aviris Remote Sensing Retrieved from "http:en.openei.orgwindex.php?titleRockSamplingAtYel...
Using Ornamental Rock Waste in the Manufacture of Pressed Brick ...
... is a major producer of rock trimmest, with its production destined largely for export. ... Application of Electrospun Gas Diffusion Nanofibre-membranes in the�...
Jazz and Blues Legends Rock the Northeast, Help Save Louisiana ...
Jazz and Blues Legends Rock the Northeast, Help Save Louisiana's Coastal Wetlands. 6.8.2006 Neville Brothers, Dr. John and Mavis Staples Highlight the ...
effect of pressure on electrical resistivity of rocks. J..exceptionally high electrical resistivity and low waterwater content is the electrical resistivity which in igneous
Witherspoon, P.A.
Isotopic Analysis- Rock At Long Valley Caldera Area (Smith &...
Isotopic Analysis- Rock At Long Valley Caldera Area (Smith & Suemnicht, 1991) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis-...
and R. Haught, Instrumentation evaluation, calibration, and27 - 30,1979. ROCK INSTRUMENTATION PROBLEMS EXPERIENCEDdiscussed here,l INSTRUMENTATION AND DATA ACQUISITION SYSTEM
Binnall, E.
Paradox Basin source rock, southeastern Utah : organic geochemical characterization of Gothic and Chimney Rock units, Ismay and Desert Creek zones, within a sequence stratigraphic framework.
??The Chimney Rock and Gothic units of the Pennsylvanian Paradox Formation have long been considered source rocks for the rich hydrocarbon fields of southeastern Utah.� (more)
Tischler, Keith Louris
7 Glossary Aquifer Field: A sub-surface facility for storing natural gas consisting of water-bearing sands topped by an imper- meable cap rock. Balancing Item: Represents...
DOE Solar Decathlon: Solar Village Energy Balance
man installing PV panels on the roof of a house. man installing PV panels on the roof of a house. U.S. Department of Energy Solar Decathlon Bookmark and Share - Home About Competition Scores & Standings Teams News Photos Videos Product Directory Village Energy Balance Education Sponsors History FAQs Contacts Solar Decathlon Village Energy Balance The U.S. Department of Energy Solar Decathlon 2013 used a small power grid, or microgrid, to distribute energy safely and reliably among the competition houses and to the utility grid. hen the sun was shining, the solar electric panels on the houses produced energy that was used to power appliances, lights, mechanical systems, and electronics. Excess energy flowed from the houses, through the microgrid, and to the Orange County community when more energy was generated than
Balance of Systems Balance of Systems Get the Adobe Flash Player to see this video. Text Alternative The U.S. Department of Energy (DOE) SunShot Initiative accelerates the adoption of solar energy technologies in the marketplace. In support of SunShot Initiative goals, the Solar Office partners with manufacturers, communities, universities, utilities, and other stakeholders to: Reduce Non-Hardware Costs Lower Barriers Foster Growth. These focus areas ensure that solar energy systems continue to become more affordable and accessible for Americans. Current Efforts DOE issues competitive solicitations to fund a range of projects that target the non-hardware, or soft costs of solar. Awardees are working through the following programs to advance the SunShot mission: Solar Energy Evolution and Diffusion Studies
Material Balance Report NRC 742_7
MATERIAL BALANCE REPORT MATERIAL BALANCE REPORT 1. NAME AND ADDRESS MATERIAL ACCOUNTABILITY NRC FORM 742 (7-2008) (PREVIOUS EDITIONS ARE OBSOLETE) 4. REPORT PERIOD (MM/DD/YYYY) PRINTED ON RECYCLED PAPER Estimated burden per response to comply with this mandatory collection request: 5 hours. Reported lessons learned are incorporated into the licensing process and fed back to industry. Send comments regarding burden estimate to the Records and FOIA/Privacy Services Branch (T-5 F52), U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, or by internet e-mail to email@example.com, and to the Desk Officer, Office of Information and Regulatory Affairs, NEOB-10202, (3150-0004), Office of Management and Budget, Washington, DC 20503. If a means used to impose an information collection does not display a currently valid OMB
On Load Balancing in a Dense Wireless
We study the load balancing problem in a dense wireless multihop network, where a typical path consists of large number of hops, i.e., the spatial scales of a typical distance between source and destination, and mean distance between the neighbouring nodes are strongly separated. In this limit, we present a general framework for analysing the traffic load resulting from a given set of paths and traffic demands. We formulate the load balancing problem as a minmax problem and give two lower bounds for the achievable minimal maximum traffic load. The framework is illustrated by an example of uniformly distributed traffic demands in a unit disk with a few families of paths given in advance. With these paths we are able to decrease the maximum traffic load by factor of 33 40% depending on the assumptions. The obtained traffic load level also comes quite near the tightest lower bound.
Multihop Network Esa; Esa Hyyti�
IMF Committee on Balance of Payments Statistics
(i) DITEG reviewed two issues papers prepared by the editorial group which allowed delineating the scope of the exercise as well as setting the priorities and establishing the procedures for future work on the FDI glossary which will be common to both the IMF Balance of Payments Manual and the OECD Benchmark Definition of Foreign Direct Investment. The first document provided some examples of definitions while the second one provided a rather broad list including terms which have broader coverage than direct investment. Both documents demonstrated the complexity of a rather resource absorbent process and the need for co-ordination with similar work undertaken elsewhere. (ii) The editor of the System of National Accounts (SNA) 1 informed DITEG of the existence of an SNA glossary. For its revision contacts are being established with responsible institutions/bodies to co-ordinate with other work, such as the Balance of
unknown authors
Photovoltaic Balance-of-System Assessment
The balance-of-system status for photovoltaic power systems is assessed, including all subsystems and components (except for cells and modules) that are needed for a fully functional power system. Array types for the central station, intermediate, and residential applications are evaluated; both active and passive cooling are considered for the central station and intermediate applications; and battery energy storage is included as an option for intermediate and residential applications.
Balanced pressure techniques applied to geothermal drilling
The objective of the study is to evaluate balanced pressure drilling techniques for use in combating lost circulation in geothermal drilling. Drilling techniques evaluated are: aerated drilling mud, parasite tubing, concentric drill pipe, jet sub, and low density fluids. Based on the present state of the art of balanced pressure drilling techniques, drilling with aerated water has the best overall balance of performance, risk, availability, and cost. Aerated water with a 19:1 free air/water ratio reduce maximum pressure unbalance between wellbore and formation pressures from 1000 psi to 50 psi. This pressure unbalance is within acceptable operating limits; however, air pockets could form and cause pressure surges in the mud system due to high percent of air. Low density fluids used with parasite tubing has the greatest potential for combating lost circulation in geothermal drilling, when performance only is considered. The top portion of the hole would be aerated through the parasite tube at a 10:1 free air/mud ratio and the low density mud could be designed so that its pressure gradient exactly matches the formation pore pressure gradient. The main problem with this system at present is the high cost of ceramic beads needed to produce low density muds.
Dareing, D.W.
Budget-Balance, Fairness and Minimal Manipulability ?
A common real-life problem is to fairly allocate a number of indivisible objects and a fixed amount of money among a group of agents. Fairness requires that each agent weakly prefers his consumption bundle to any other agent�s bundle. In this context, fairness is incompatible with budget-balance and non-manipulability (Green and Laffont, 1979). Our approach here is to weaken or abandon non-manipulability. We search for the rules which are minimally manipulable among all fair and budgetbalanced rules. First, we show for a given preference profile, all fair and budgetbalanced rules are either (all) manipulable or (all) non-manipulable. Hence, measures based on counting profiles where a rule is manipulable or considering a possible inclusion of profiles where rules are manipulable do not distinguish fair and budgetbalanced rules. Thus, a �finer � measure is needed. Our new concept compares two rules with respect to their degree of manipulability by counting for each profile the number of agents who can manipulate the rule. Second, we show that maximally preferred fair allocation rules are the minimally (individually and coalitionally) manipulable fair and budget-balanced allocation rules according to our new concept. Such rules choose allocations with the maximal number of agents for whom the utility is maximized among all fair and budget-balanced allocations.
Tommy Andersson; Lars Ehlers; Lars-gunnar Svensson
Heat flow in relation to hydrothermal activity in the southern Black Rock Desert, Nevada
As part of an investigation of the Gerlach NE KGRA (Known Geothermal Resource Area) a number of heat-flow measurements were made in playa sediments of the southern Black Rock Desert, northwestern Nevada. These data together with additional previously unpublished heat-flow values reveal a complex pattern of heat flow with values ranging between 1.0 to 5.0 HFU (40 to 100 mWm/sup -2/) outside of the hot springs area. The mean heat flow for the 13 reported sites in the southern Black Rock Desert is 1.8 +- 0.15 HFU (75 +- 6 mWm/sup -2/). The complexity of the pattern of heat flow is believed to arise from hydrothermal circulation supporting the numerous hot springs throughout the region. The fact that the lowest observed heat flow occurs in the deepest part of the basin strongly suggests that fluid movement within the basin represents part of the recharge for the hydrothermal system. A thermal balance for the system incorporating both anomalous conductive heat loss and convective heat loss from the spring systems indicate a total energy loss of about 8.0 Mcal/sec or 34 megawatts over an estimated 1000 km/sup 2/ region. Consideration of this additional heat loss yields a mean regional heat flow of 2.5 + HFU (100 + mWm/sup -2/) and warrants inclusion of this region in the Battle Mountain heat-flow high (Lachenbruch and Sass, 1977, 1978).
Sass, J.H.; Zoback, M.L.; Galanis, S.P. Jr.
An improved transformer is invented for joining an unbalanced transmission means to a balanced transmission means and is useful, for example, in transmitting an electromagnetic signal from a coaxial cable to a balanced dipole antenna.
Bittner, B.J.; Opperman, R.H.
The power balance method For aerodynamic performance assessment
This thesis describes the use of the power balance method for performance estimation of aircraft configurations. In this method, mechanical power production and mechanical power consumption of the aircraft are balanced, ...
Sato, Sho, Ph. D. Massachusetts Institute of Technology
A Novel and Low Cost Sea Ice Mass Balance Buoy.
The understanding of sea ice mass balance processes requires continuous monitoring of the seasonal evolution of the ice thickness. While autonomous ice mass balance buoys (IMB buoys) deployed over the past two decades have contributed to our ...
Keith Jackson; Jeremy Wilkinson; Ted Maksym; Justin Beckers; Christian Haas; David Meldrum; David Mackenzie
Enhanced flux balance analysis to model metabolic networks
Flux Balance Analysis (FBA) is a widely used technique to predict rates of reactions in metabolic networks in cells under steady state using only stoichiometric information about the reactions. In this work, we introduce Enhanced Flux Balance Analysis ...
Nishanth Ulhas Nair; Navin Goyal; Nagasuma R. Chandra
Slaving Principles, Balanced Dynamics, and the Hydrostatic Boussinesq Equations
The problem of finding higher-order generalizations of the quasigeostrophic and semigeostrophic models, that is, higher-order balanced models, is investigated systematically by using a slaving principle. It is shown that most existing balanced ...
Onno Bokhove
The United States Plutonium Balance, 1944-2009 | National Nuclear...
The United States Plutonium Balance, 1944-2009 The United States has released an inventory of its plutonium balances from 1944 through 2009. The document serves as an update...
Reassessment of Net Surface Mass Balance in Antarctica
Recent in situ measurements of surface mass balance and improved calculation techniques are used to produce an updated assessment of net surface mass balance over Antarctica. A new elevation model of Antarctica derived from ERS-1 satellite ...
David G. Vaughan; Jonathan L. Bamber; Mario Giovinetto; Jonathan Russell; A. Paul R. Cooper
A Three-Dimensional Balance Theory for Rapidly Rotating Vortices
A three-dimensional balance formulation for rapidly rotating vortices, such as hurricanes, is presented. The asymmetric balance (AB) theory represents a new mathematical framework for studying the slow evolution of rapidly rotating fluid systems. ...
Lloyd J. Shapiro; Michael T. Montgomery
'Balancing market maker' proposal for France poses several Key questions
Officials responsible for cross-border trade and balancing market issues raise questions about a 'balancing market maker' proposal. Data are presented on imbalance prices for 24 European countries.
Gence-Creux, Christophe; Bonnesoeur, Nicolas; Mocco, Marielle; Papillon, Benjamin [Grid Access Directorate, Cross-Border Power Trade Department, CRE (France)
Balance Calibration and Use in an Analytical Environment ...
... the sources of weighing errors in analytical environments, methodologies for ... to use of balances in an analytical environment where compliance ...
Handbook on Material and Energy Balance Calculations in ...
Jul 1, 1998 ... Handbook on Material and Energy Balance Calculations in Metallurgical Processes by H. Alan ... Extraction and Processing; Fundamentals;�...
greenhouse gas balance of magnesium parts for automotive ...
Jul 20, 2012 ... GREENHOUSE GAS BALANCE OF MAGNESIUM PARTS FOR AUTOMOTIVE APPLICATIONS by Simone Ehrenberger, Horst E. Friedrich�...
Rock Rapids Municipal Utility | Open Energy Information
Rapids Municipal Utility Rapids Municipal Utility Jump to: navigation, search Name Rock Rapids Municipal Utility Place Iowa Utility Id 16206 Utility Location Yes Ownership M NERC Location MRO NERC MRO Yes Operates Generating Plant Yes Activity Generation Yes Activity Transmission Yes Activity Buying Transmission Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial Power (Single-Phase) Commercial Commercial Power (Three-Phase) Commercial Residential Power Residential Average Rates Residential: $0.0807/kWh Commercial: $0.0633/kWh Industrial: $0.0899/kWh
High-Velocity Rocks Final Report
The objective of our research was to develop and demonstrate seismic data-acquisition and data-processing technologies that allow geothermal prospects below high-velocity rock outcrops to be evaluated. To do this, we acquired a 3-component seismic test line across an area of exposed high-velocity rocks in Brewster County, Texas, where there is high heat flow and surface conditions mimic those found at numerous geothermal prospects. Seismic contractors have not succeeded in creating good-quality seismic data in this area for companies who have acquired data for oil and gas exploitation purposes. Our test profile traversed an area where high-velocity rocks and low-velocity sediment were exposed on the surface in alternating patterns that repeated along the test line. We verified that these surface conditions cause non-ending reverberations of Love waves, Rayleigh waves, and shallow critical refractions to travel across the earth surface between the boundaries of the fast-velocity and slow-velocity material exposed on the surface. These reverberating surface waves form the high level of noise in this area that does not allow reflections from deep interfaces to be seen and utilized. Our data-acquisition method of deploying a box array of closely spaced geophones allowed us to recognize and evaluate these surface-wave noise modes regardless of the azimuth direction to the surface anomaly that backscattered the waves and caused them to return to the test-line profile. With this knowledge of the surface-wave noise, we were able to process these test-line data to create P-P and SH-SH images that were superior to those produced by a skilled seismic data-processing contractor. Compared to the P-P data acquired along the test line, the SH-SH data provided a better detection of faults and could be used to trace these faults upward to the boundaries of exposed surface rocks. We expanded our comparison of the relative value of S-wave and P-wave seismic data for geothermal applications by inserting into this report a small part of the interpretation we have done with 3C3D data across Wister geothermal field in the Imperial Valley of California. This interpretation shows that P-SV data reveal faults (and by inference, also fractures) that cannot be easily, or confidently, seen with P-P data, and that the combination of P-P and P-SV data allows VP/VS velocity ratios to be estimated across a targeted reservoir interval to show where an interval has more sandstone (the preferred reservoir facies). The conclusion reached from this investigation is that S-wave seismic technology can be invaluable to geothermal operators. Thus we developed a strong interest in understanding the direct-S modes produced by vertical-force sources, particularly vertical vibrators, because if it can be demonstrated that direct-S modes produced by vertical-force sources can be used as effectively as the direct-S modes produced by horizontal-force sources, geothermal operators can acquire direct-S data across many more prospect areas than can be done with horizontal-force sources, which presently are limited to horizontal vibrators. We include some of our preliminary work in evaluating direct-S modes produced by vertical-force sources.
Hardage, Bob A; DeAngelo, Michael V; Ermolaeva, Elena; Hardage, Bob A; Remington, Randy; Sava, Diana; Wagner, Donald; Wei, Shuijion
Hot dry rock Phase II reservoir engineering
Early attempts to hydraulically fracture and connect two wells drilled at the Hot Dry Rock site at Fenton Hill in New Mexico failed. Microearthquakes triggered by hydraulic fracturing indicated that the fracture zones grew in unexpected directions. Consequently one of the wells was sidetracked at a depth of 2.9 km; was redrilled into the zones of most intense microseismic activity; and a flow connection was achieved. Hydraulic communication was improved by supplemental fracturing using recently developed high temperature and high pressure open hole packers. Preliminary testing indicates a reservoir with stimulated joint volume which already surpasses that attained in the earlier phase I reservoir after several years of development. 12 refs., 6 figs.
Suburban Energy Balance Estimates for Vancouver, B.C., Using the Bowen Ratio-Energy Balance Approach
The energy balance of a suburban site in Vancouver, B.C. in late summer is presented. The balance is obtained from direct measurements of net radiation, parameterized heat storage and turbulent fluxes determined according to the Bowen ratio-...
B. D. Kalanda; T. R. Oke; D. L. Spittlehouse
Balanced and Unbalanced Circulations in a Primitive Equation Simulation of a Midlatitude MCC. Part II: Analysis of Balance
A nonlinear balance condition, which permits the diagnosis of both balanced divergent and nondivergent flows, is presented. This analysis approach is applied to the results of a numerical simulation of a midlatitude mesoscale convective complex (...
Peter Q. Olsson; William R. Cotton
Determining inert content in coal dust/rock dust mixture
A method and apparatus for determining the inert content of a coal dust and rock dust mixture uses a transparent window pressed against the mixture. An infrared light beam is directed through the window such that a portion of the infrared light beam is reflected from the mixture. The concentration of the reflected light is detected and a signal indicative of the reflected light is generated. A normalized value for the generated signal is determined according to the relationship .phi.=(log i.sub.c `log i.sub.co) / (log i.sub.c100 -log i.sub.co) where i.sub.co =measured signal at 0% rock dust i.sub.c100 =measured signal at 100% rock dust i.sub.c =measured signal of the mixture. This normalized value is then correlated to a predetermined relationship of .phi. to rock dust percentage to determine the rock dust content of the mixture. The rock dust content is displayed where the percentage is between 30 and 100%, and an indication of out-of-range is displayed where the rock dust percent is less than 30%. Preferably, the rock dust percentage (RD%) is calculated from the predetermined relationship RD%=100+30 log .phi.. where the dust mixture initially includes moisture, the dust mixture is dried before measuring by use of 8 to 12 mesh molecular-sieves which are shaken with the dust mixture and subsequently screened from the dust mixture.
Sapko, Michael J. (Finleyville, PA); Ward, Jr., Jack A. (Oakmont, PA)
Property:HostRockLithology | Open Energy Information
HostRockLithology HostRockLithology Jump to: navigation, search Property Name HostRockLithology Property Type String Description Condensed description of the lithology of the reservoir rock. This is a property of type Page. Subproperties This property has the following 14 subproperties: B Beowawe Hot Springs Geothermal Area Brady Hot Springs Geothermal Area C Chena Geothermal Area D Desert Peak Geothermal Area G Geysers Geothermal Area H Heber Geothermal Area L Lightning Dock Geothermal Area R Raft River Geothermal Area Roosevelt Hot Springs Geothermal Area S Salton Sea Geothermal Area Steamboat Springs Geothermal Area S cont. Stillwater Geothermal Area V Valles Caldera - Sulphur Springs Geothermal Area W Wabuska Hot Springs Geothermal Area Pages using the property "HostRockLithology"
Drilling Large Diameter Holes in Rocks Using Multiple Laser Beams
Drilling Large Diameter Holes in Rocks Using Multiple Laser Beams (504) Drilling Large Diameter Holes in Rocks Using Multiple Laser Beams (504) Richard Parker,. Parker Geoscience Consulting, LLC, Arvada, Colorado, USA; Zhiyue Xu and Claude Reed, Argonne National Laboratory, Argonne, Illinois, USA; Ramona Graves, Department of Petroleum Engineering, Colorado School of Mines, Golden, Colorado, USA; Brian Gahan and Samih Batarseh, Gas Technology Institute, Des Plaines, Illinois, USA ABSTRACT Studies on drilling petroleum reservoir rocks with lasers show that modern infrared lasers have the capability to spall (thermally fragment), melt and vaporize natural earth materials with the thermal spallation being the most efficient rock removal mechanism. Although laser irradiance as low as 1000 W/cm 2 is sufficient to spall rock, firing the
Property:HostRockAge | Open Energy Information
HostRockAge HostRockAge Jump to: navigation, search Property Name HostRockAge Property Type String Description Describes the age of the reservoir rock by epoch, era, or period per available data. This is a property of type Page. Subproperties This property has the following 10 subproperties: B Beowawe Hot Springs Geothermal Area Brady Hot Springs Geothermal Area C Chena Geothermal Area D Desert Peak Geothermal Area G Geysers Geothermal Area R Raft River Geothermal Area Roosevelt Hot Springs Geothermal Area S Salton Sea Geothermal Area Steamboat Springs Geothermal Area W Wabuska Hot Springs Geothermal Area Pages using the property "HostRockAge" Showing 11 pages using this property. A Amedee Geothermal Area + Mesozoic + B Blue Mountain Geothermal Area + Triassic + C Coso Geothermal Area + Mesozoic +
Electrical Conductivity of Soils and Rocks | Open Energy Information
form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Electrical Conductivity of Soils and Rocks Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Electrical Conductivity of Soils and Rocks Author J.D. McNeill Organization Geonics Limited Published Geonics Limited, 1980 Report Number TN-5 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Electrical Conductivity of Soils and Rocks Citation J.D. McNeill (Geonics Limited). 1980. Electrical Conductivity of Soils and Rocks. TN-5 Edition. ?: Geonics Limited. Report No.: TN-5. Retrieved from "http://en.openei.org/w/index.php?title=Electrical_Conductivity_of_Soils_and_Rocks&oldid=695344"
Rock Density At Alum Area (DOE GTP) | Open Energy Information
Rock Density At Alum Area (DOE GTP) Rock Density At Alum Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Rock Density At Alum Geothermal Area (DOE GTP) Exploration Activity Details Location Alum Geothermal Area Exploration Technique Rock Density Activity Date Usefulness not indicated DOE-funding Unknown References (1 January 2011) GTP ARRA Spreadsheet Retrieved from "http://en.openei.org/w/index.php?title=Rock_Density_At_Alum_Area_(DOE_GTP)&oldid=402985" Categories: Exploration Activities DOE Funded Activities ARRA Funded Activities What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data Developer services OpenEI partners with a broad range of international organizations to grow
Rock Sampling At Coso Geothermal Area (1995) | Open Energy Information
source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Rock Sampling At Coso Geothermal Area (1995) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Rock Sampling At Coso Geothermal Area (1995) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Rock Sampling Activity Date 1995 Usefulness not indicated DOE-funding Unknown Notes Geologic controls on the geometry of the upwelling plume were investigated using petrographic and analytical analyses of reservoir rock and vein material. References Lutz, S.J.; Moore, J.N. ; Copp, J.F. (1 June 1995) Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal Area,
Property:CapRockLithology | Open Energy Information
CapRockLithology CapRockLithology Jump to: navigation, search Property Name CapRockLithology Property Type String Description Condensed description of the lithology of the cap rock. Subproperties This property has the following 6 subproperties: B Beowawe Hot Springs Geothermal Area Brady Hot Springs Geothermal Area D Desert Peak Geothermal Area E East Mesa Geothermal Area H Heber Geothermal Area S Salton Sea Geothermal Area Pages using the property "CapRockLithology" Showing 6 pages using this property. A Amedee Geothermal Area + volcanic; lacustrine sediments + B Blue Mountain Geothermal Area + Hydrothermal alteration layer + G Geysers Geothermal Area + Hydrothermal alteration layer + K Kilauea East Rift Geothermal Area + Overlapping a'a' and pahoehoe flows + L Long Valley Caldera Geothermal Area + Metasedimentary Landslide Block; Hydrothermal Alteration Layer +
Rock Hill Utilities - Water Heater and Heat Pump Rebate Program |
Rock Hill Utilities - Water Heater and Heat Pump Rebate Program Rock Hill Utilities - Water Heater and Heat Pump Rebate Program Rock Hill Utilities - Water Heater and Heat Pump Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heat Pumps Appliances & Electronics Water Heating Program Info State South Carolina Program Type Utility Rebate Program Rebate Amount Water Heater: up to $275 Heat Pump Replacement: $400 Provider Rock Hill Utilities Through the SmartChoice program, Rock Hill Utilities offers rebates for water heater and heat pump replacements. Information on financing for heat pumps can also be found on the web site listed above. If both the water heater and heat pump are purchased then the customer may qualify for the Great Rate program. The Great Rate program will add a 25% discount to a
Isotopic Analysis- Rock At Coso Geothermal Area (1984) | Open Energy
Analysis- Rock At Coso Geothermal Area (1984) Analysis- Rock At Coso Geothermal Area (1984) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Rock At Coso Geothermal Area (1984) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Isotopic Analysis- Rock Activity Date 1984 Usefulness not indicated DOE-funding Unknown Exploration Basis To analyze evidence for crustal interaction and compositional zonation in the source regions of Pleistocene basaltic and rhyolitic magmas of the Coso volcanic field Notes The isotopic compositions of Pb and Sr in Pleistocene basalt, high-silica rhyolite, and andesitic inclusions in rhyolite of the Coso volcanic field indicate that these rocks were derived from different levels of compositionally zoned magmatic systems. The two earliest rhyolites probably
Carbon Balance and Management BioMed Central Editorial Welcome to Carbon Balance and Management
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We are pleased to announce the launch of Carbon Balance and Management, a new online open access journal published by BioMed Central. Carbon Balance and Management Carbon Balance and Management is a new open access, peer-reviewed online journal that encompasses all aspects of research aimed at developing a comprehensive, policyrelevant understanding of the global carbon cycle [1]. Advancement in the union of the two issues indicted by the journal's title will be a very important element of future global economic and societal development. We must develop predictive and observational capabilities to determine how carbon systems are changing now and how they will be changing in the future, and we must
Robert Dickinson
Towards a Sustainable Energy Balance: Progressive Efficiency and the Return of Energy Conservation
WP 171 Towards a Sustainable Energy Balance: ProgressiveTowards a Sustainable Energy Balance: Progressive Efficiencyin order to achieve a sustainable energy balance. Along the
Harris, Jeffrey; Diamond, Rick; Iyer, Maithili; Payne, Christopher; Blumstein, Carl; Siderius, Hans-Paul
Towards a Sustainable Energy Balance: Progressive Efficiencyin order to achieve a sustainable energy balance. Along theconsumer desires. 1.2 Sustainable Energy Balance as the Goal
Harris, Jeff
Voltage balanced multilevel voltage source converter system
A voltage balanced multilevel converter for high power AC applications such as adjustable speed motor drives and back-to-back DC intertie of adjacent power systems. This converter provides a multilevel rectifier, a multilevel inverter, and a DC link between the rectifier and the inverter allowing voltage balancing between each of the voltage levels within the multilevel converter. The rectifier is equipped with at least one phase leg and a source input node for each of the phases. The rectifier is further equipped with a plurality of rectifier DC output nodes. The inverter is equipped with at least one phase leg and a load output node for each of the phases. The inverter is further equipped with a plurality of inverter DC input nodes. The DC link is equipped with a plurality of rectifier charging means and a plurality of inverter discharging means. The plurality of rectifier charging means are connected in series with one of the rectifier charging means disposed between and connected in an operable relationship with each adjacent pair of rectifier DC output nodes. The plurality of inverter discharging means are connected in series with one of the inverter discharging means disposed between and connected in an operable relationship with each adjacent pair of inverter DC input nodes. Each of said rectifier DC output nodes are individually electrically connected to the respective inverter DC input nodes. By this means, each of the rectifier DC output nodes and each of the inverter DC input nodes are voltage balanced by the respective charging and discharging of the rectifier charging means and the inverter discharging means.
Peng, Fang Zheng (Oak Ridge, TN); Lai, Jih-Sheng (Knoxville, TN)
Disclosed is a voltage balanced multilevel converter for high power AC applications such as adjustable speed motor drives and back-to-back DC intertie of adjacent power systems. This converter provides a multilevel rectifier, a multilevel inverter, and a DC link between the rectifier and the inverter allowing voltage balancing between each of the voltage levels within the multilevel converter. The rectifier is equipped with at least one phase leg and a source input node for each of the phases. The rectifier is further equipped with a plurality of rectifier DC output nodes. The inverter is equipped with at least one phase leg and a load output node for each of the phases. The inverter is further equipped with a plurality of inverter DC input nodes. The DC link is equipped with a plurality of rectifier charging means and a plurality of inverter discharging means. The plurality of rectifier charging means are connected in series with one of the rectifier charging means disposed between and connected in an operable relationship with each adjacent pair of rectifier DC output nodes. The plurality of inverter discharging means are connected in series with one of the inverter discharging means disposed between and connected in an operable relationship with each adjacent pair of inverter DC input nodes. Each of said rectifier DC output nodes are individually electrically connected to the respective inverter DC input nodes. By this means, each of the rectifier DC output nodes and each of the inverter DC input nodes are voltage balanced by the respective charging and discharging of the rectifier charging means and the inverter discharging means. 15 figs.
Peng, F.Z.; Lai, J.S.
Energy Balance Bowen Ratio Station (EBBR) Handbook
The energy balance Bowen ratio (EBBR) system produces 30-minute estimates of the vertical fluxes of sensible and latent heat at the local surface. Flux estimates are calculated from observations of net radiation, soil surface heat flux, and the vertical gradients of temperature and relative humidity (RH). Meteorological data collected by the EBBR are used to calculate bulk aerodynamic fluxes, which are used in the Bulk Aerodynamic Technique (BA) EBBR value-added product (VAP) to replace sunrise and sunset spikes in the flux data. A unique aspect of the system is the automatic exchange mechanism (AEM), which helps to reduce errors from instrument offset drift.
NNSA Defense Programs collects nearly 20 large boxes of items for Toys for
collects nearly 20 large boxes of items for Toys for collects nearly 20 large boxes of items for Toys for Tots | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > NNSA Defense Programs collects nearly 20 large ... NNSA Defense Programs collects nearly 20 large boxes of items for Toys for Tots Posted By Office of Public Affairs
Sitewide Categorical Exclusion for Removal of Polychlorinated Biphenyl-Containing Items
17 SWCX for Removal of PCB-Containing Items Revision 0 17 SWCX for Removal of PCB-Containing Items Revision 0 Sitewide Categorical Exclusion for Removal of Polychlorinated Biphenyl-Containing Items Introduction As defined in the U.S. Department of Energy's (DOE) Richland Operations Office Integrated An application of DOE categorical exclusions described in 10 CFR 1021, Appendices A and B, which may apply to Hanford Site proposed actions (activities) that are "sitewide" in nature and extent, which the cognizant DOE Hanford NCO has determined fit within the scope (i.e., same nature and intent, and of the san1e or lesser scope) ofDOE categorical exclusions described in 10 CFR 1021 Appendices A and B. The cognizant DOE Hanford NCO may issue specific sitewide categorical exclusions for use on proposed actions in which separate DOE approval to proceed is
Safeguard Application Options for the Laser-Based Item Monitoring System (LBIMS)
Researchers at Oak Ridge National Laboratory (ORNL) are developing a Laser-Based Item Monitoring System (LBIMS) for advanced safeguards at nuclear facilities. LBIMS uses a low-power laser transceiver to monitor the presence and position of items with retroreflective tags. The primary advantages of LBIMS are its scalability to continuously monitor a wide range of items, its ability to operate unattended, its low cost of implementation, and its inherent information security due to its line-of-sight and non-broadcasting operation. The primary proposed safeguard application of LBIMS is described in its name: item monitoring. LBIMS could be implemented in a storage area to continuously monitor containers of nuclear material and the area in which they are stored. The system could be configured to provide off-site notification if any of the containers are moved or removed or if the area is accessed. Individual tags would be used to monitor storage containers, and additional tags could be used to record information regarding secondary storage units and room access. The capability to register small changes in tag position opens up the possibility of several other uses. These include continuously monitoring piping arrangements for design information verification or recording equipment positions for other safeguards systems, such as tracking the opening and closing of autoclaves as part of a cylinder tracking system or opening and closing valves on a sample or product take-off line. Combined with attribute tags, which transmit information from any kind of sensor by modulating the laser signal, LBIMS provides the capability to wirelessly and securely collect safeguards data, even in areas where radio-frequency or other wireless communication methods are not practicable. Four application types are described in this report: static item monitoring, in-process item monitoring with trigger tags, multi-layered integration with trigger tags, and line-of-sight data transfer with attribute tags. Field trials for each of these applications are described.
Laughter, Mark D [ORNL
38 th �U.S. � Rock �Mechanics �Symposium. �1321-�?1333. �38 th �U.S. �Rock �Mechanics �Symposium, �1313-�?1320. �Introduction � to � Rock � Mechanics. � John � Wiley � and �
Full waveform inversion of a 3-D source inside an artificial rock
of a 3-D Source Inside an Artificial Rock Albert C. To andof a 3-D source inside an artificial rock plate inof a 3-D source inside an artificial rock plate is
To, A C; Glaser, Steven D
Plutonium Finishing Plant (PFP) Standby Power System Commercial Grade Item (CGI) Critical Characteristics
PFP's Standby Power System consists of the diesel generators, the generator control system, Rm 308 UPS, switchgear batteries, and the electrical equipment used to distribute this power. Due to the nature of the equipment and its use throughout general industry, the majority of the system falls within the CGI definition HNF-PRO-268, ''Control of Purchased Items and Services'' and HNF-PRO-1819, ''PHMC Engineering Requirements'' require that the critical characteristics of CGI-procured equipment be established in an engineering document prior to placing the order. HNF-5043 established these critical characteristics for the Standby Power System. This modification adds several items to the document.
Criticality Safety Support to a Project Addressing SNM Legacy Items at LLNL
The programmatic, facility and criticality safety support staffs at the LLNL Plutonium Facility worked together to successfully develop and implement a project to process legacy (DNFSB Recommendation 94-1 and non-Environmental, Safety, and Health (ES&H) labeled) materials in storage. Over many years, material had accumulated in storage that lacked information to adequately characterize the material for current criticality safety controls used in the facility. Generally, the fissionable material mass information was well known, but other information such as form, impurities, internal packaging, and presence of internal moderating or reflecting materials were not well documented. In many cases, the material was excess to programmatic need, but such a determination was difficult with the little information given on MC&A labels and in the MC&A database. The material was not packaged as efficiently as possible, so it also occupied much more valuable storage space than was necessary. Although safe as stored, the inadequately characterized material posed a risk for criticality safety noncompliances if moved within the facility under current criticality safety controls. A Legacy Item Implementation Plan was developed and implemented to deal with this problem. Reasonable bounding conditions were determined for the material involved, and criticality safety evaluations were completed. Two appropriately designated glove boxes were identified and criticality safety controls were developed to safely inspect the material. Inspecting the material involved identifying containers of legacy material, followed by opening, evaluating, processing if necessary, characterizing and repackaging the material. Material from multiple containers was consolidated more efficiently thus decreasing the total number of stored items to about one half of the highest count. Current packaging requirements were implemented. Detailed characterization of the material was captured in databases and new ES&H container labels applied. In many cases, legacy material that was inspected was determined to be excess to programmatic needs and it was then either processed to meet the DOE-3013-STD or designated as TRU waste and disposed of accordingly. During FY2003 through FY2004 approximately 1600 items were opened and the items processed if necessary, repackaged and newly labeled with ES&H labels. As of April, 2005, there are only 32 non-ES&H labeled items in existence within the Plutonium Facility. Due to a consolidated effort in dealing with the legacy items, the problems associated with storage of these items at LLNL has been substantially abated. The paper will discuss the background, implementation, and results of the SNM Legacy Items Implementation Project. Benefits and Lessons Learned will be identified.
Pearson, J S; Burch, J G; Dodson, K E; Huang, S T
Water Balance of the 1993 Midwest Flood
Throughout the spring and summer months of 1993, extended rainfall throughout much of the Midwestern United States caused record flooding that inundated much of the Upper Mississippi River Basin (UMRB). Precipitation in May was more then twice the normal over an area that extended from southeastern South Dakota across Iowa to eastern Kansas. From early June to the end of July, high amounts of precipitation persisted over the upper Midwest (Wahl, et al., 1993). USGS records indicated that at 45 streamflow gauging stations, the peak discharge recorded during 1993 had recurrence intervals of greater than 100 years. However, because of the natural and man-made changes in the flood region, some sites had less-than-record peak discharges (Parret, et al., 1993). The storage of large volumes of water in reservoirs significantly reduced the peak flow and flood damages downstream from the dams (Southard, 1993). Following the 1993 Midwest flood, President Clinton established the Scientific Assessment and Strategy Team (SAST) on November 24, 1993, to study the effects of the flood and to make recommendations about future flood preparedness. The SAST joined the Interagency Floodplain Management Review Committee (FMRC) on January 10, 1994 (FMRC, 1994). As part of this effort, the SAST project identified a need for a daily water balance of the flooded area to determine how much water fell and how quickly it moved through the landscape. There were two significant policy issues resulting from the flood: (1) how did the flood volume and velocity of flow increase by land use changes associated with agricultural development in the Midwest, including extensive drainage of wetlands; and (2) what plan should be adopted for restoration of failed levee systems. The first of these questions is hydrologic, the second, hydraulic. The hydraulic issues were addressed by the SAST project and related efforts by modeling the motion of water through the main tributaries of the Mississippi and Missouri Rivers where the major levee failures occurred. The hydrologic questions were not so readily addressed because of the huge region affected by the flood, some 700,000 km2 in area. Flood hydrology models are normally applied to regions 100 to 1,000 times smaller than this area. Thus, the need for the present study arose � to model the movement of water through the landscape of the SAST study area by constructing a daily water balance in a series of subwatersheds in the flooded area. A USGS WEB site designated for SAST is located at: http://edcwww2.cr.usgs.gov/sast-home.html . Figure 1.1 shows the location and the extent of the SAST study area. This region covers all of the UMRB above St. Louis and that portion of the Missouri Basin whose drainage enters the Missouri River by watershed (Missouri, Platte, Kansas, Osage, and Gasconade Rivers). The contribution of the remainder of the Missouri Basin was accounted for by using gauged data from tributary flows at the border of the study region. The goal of this project was to calculate the daily water balance for the SAST region for 1993. A Geographic Information System (GIS) was used to determine the balance. GIS offers a technology to formulate more objective and consistent methods to synthesize collected data and to assess water quality and quantity over large areas (Maidment, 1996). The spatial resolution of the SAST region was defined by the location of discharge gauging stations as well as the completeness and quality of the discharge record. The preliminary analysis was performed using daily discharge values recorded at 261 USGS stations from 01/01/1993 to 09/30/1993. The final water balance was estimated for 132 watersheds defined by the stations that have a complete discharge record for all days of 1993. The cumulative storage values were then spatially averaged over 4
Mizgalewicz, Pawel J.; Maidment, David R.; White, W. Scott; Ridd, Merrill K.
Modeling rock fracturing in bench-blasting problems
A computational model of rock blasting is being developed to examine the blasting problems associated with in situ oil shale processing. This model, however, will also be useful as a design tool for the traditional problems in rock blasting. The model includes fundamental treatment of both shock-wave propagation and the accumulation of brittle fracture in the rock. As a result, the model accurately predicts the degree and extent of fracturing as functions of design parameters. The model has proven useful for making parametric studies and for evaluation of alternate blast designs. This paper demonstrates the use of the numerical model to simulate the fracturing induced by the detonation of a vertical explosive column near a bench. The fracturing induced by three different explosives indicate that (in the chosen geometry) the most efficient breakage is done by a column of ammonium nitrate and fuel oil mixture (ANFO) used with a toe charge of aluminized ANFO. There was too much unfractured rock left when ANFO was used alone; aluminized ANFO used for the entire explosive column caused excessive fracturing. A final case involves ANFO used alone to fracture a different rock type. This case points out that in a different rock type, the ANFO will not leave excessive unfractured rock.
Kuszmaul, J.S.
The overall objective of the Hot Dry Rock (HDR) Geothermal Energy Development Program is to determine the technical and economic feasibility of HDR as a significant energy source and to provide a basis for its timely commercial development. Principal operational tasks are those activities required to enable a decision to be made by FY86 on the ultimate commercialization of HDR. These include development and analyis of a 20- to 50-MW Phase II HDR reservoir at Site 1 (Fenton Hill) with the potential construction of a pilot electric generating station, Phase III; selection of a second site with subsequent reservoir development and possible construction of a direct heat utilization pilot plant of at least 30 MW thermal thereon; the determination of the overall domestic HDR energy potential; and the evaluation of 10 or more target prospect areas for future HDR plant development by commercial developers. Phase I of the Los Alamos Scientific Laboratory's Fenton Hill project was completed. Phase I evaluated a small subterranean system comprised of two boreholes connected at a depth of 3 km by hydraulic fracturing. A closed-loop surface system has been constructed and tests involving round-the-clock operation have yielded promising data on heat extraction, geofluid chemistry, flow impedance, and loss of water through the underground reservoir between the two holes, leading to cautions optimism for the future prospects of private-sector HDR power plants. (MHR)
Franke, P.R.
Balanced binary trees for ID management and load balance in distributed hash tables
We present a low-cost, decentralized algorithm for ID management in distributed hash tables (DHTs) managed by a dynamic set of hosts. Each host is assigned an ID in the unit interval [0, 1). At any time, the set of IDs splits the interval into disjoint ... Keywords: DHT, ID management, P2P, binary tree, distributed hash table, load balance, peer to peer
Gurmeet Singh Manku
Drip shield Structural Response to Rock Fall
The objective of this calculation is to determine areas over the drip shield (DS) top plate and side-walls where the residual stress values exceed 50% of Ti-7 yield strength. These areas will also be referred to as the damaged areas throughout this document. The scope of this document is limited to reporting the calculation results in terms of the damaged areas based on a chosen set of stress components. This calculation is intended for use in support of the preliminary design activities for the license application design of the DS. This calculation is associated with the DS design and was performed by the Waste Package and Components. AP-3.12Q, ''Design Calculations and Analyses'' is used to perform the calculation and develop the document. The DS is classified as a safety category item. Therefore, this calculation is subject to the Quality Assurance Requirements and Description. The information provided by the sketches attached to this calculation is that of the potential design of the type of DS considered in this calculation and provides the potential dimensions and materials for the DS design. The finite element (FE) calculation was performed by using the commercially available LS-DYNA Version (V)960 (Software Tracking Number [STN] 10300-960.1106-00, Ref. 7) FE code. The results of this calculation were evaluated using residual first principal stress. Subsequent analysis of areas determined by residual stresses have been reported in the results section of this document. The finite element mesh adequacy was determined based on the maximum stress intensity and maximum first principal stress. The current work processes and procedures for the control of the electronic management of data for this activity were conducted in accordance with AP-3.13Q, ''Design Control'' (Section 5.1.2).
Z. Ceylan
A coupled model of fluid flow in jointed rock
We present a fully coupled model of fluid flow in jointed rock, where the fluid flow depends on the joint openings and the joint openings depend on the fluid pressure. The joints and rock blocks are modeled discretely using the finite element method. Solutions for the fluid and rock are obtained and iteration is performed until both solutions converge. Example applications include an examination of the effects of back-pressure on flow in a geothermal reservoir and transient fluid injection into a reservoir.
Swenson, Daniel; Martineau, Rick; James, Mark; Brown, Don
Rock properties in support of geothermal resource development
Geothermal rock mechanics needs have been defined and subsequently a test system was designed and built for providing appropriate material properties. The development areas identified as requiring rock mechanics were stimulation, reservoir engineering, subsidence prediction, surface exploration and subsurface evaluation, and drilling. The resulting test system provides mechanical, electrical, thermal and physical properties on 2 and 4 inch diameter cores at confining pressures and pore fluid pressures to 200 MPa (30,000 psi) and temperatures to 535/sup 0/C (1000/sup 0/F). The test system development was continued and site specific rock mechanics requirements were identified. (MHR)
Butters, S.W.
EA-1897: AltaRock's Newberry Volcano EGS Demonstration near Bend...
7: AltaRock's Newberry Volcano EGS Demonstration near Bend, Oregon EA-1897: AltaRock's Newberry Volcano EGS Demonstration near Bend, Oregon Summary This EA evaluates the...
Masses. FIELD TESTS FOR RADIONUCLIDE TRANSPORT . BOREHOLE,Rock Masses � . Radionuclide Field Tests. � Borehole andaints. � � � . Barriers to Radionuclide Movement. � THE ROCK
Authors, Various
Evaluation of Five Sedimentary Rocks Other Than Salt for Geologic Repository Siting Purposes
The US Department of Energy (DOE), in order to increase the diversity of rock types under consideration by the geologic disposal program, initiated the Sedimary ROck Program (SERP), whose immediate objectiv eis to evaluate five types of secimdnary rock - sandstone, chalk, carbonate rocks (limestone and dolostone), anhydrock, and shale - to determine the potential for siting a geologic repository. The evaluation of these five rock types, together with the ongoing salt studies, effectively results in the consideration of all types of relatively impermeable sedimentary rock for repository purposes. The results of this evaluation are expressed in terms of a ranking of the five rock types with respect to their potential to serve as a geologic repository host rock. This comparative evaluation was conducted on a non-site-specific basis, by use of generic information together with rock evaluation criteria (RECs) derived from the DOE siting guidelines for geologic repositories (CFR 1984). An information base relevant to rock evaluation using these RECs was developed in hydrology, geochemistry, rock characteristics (rock occurrences, thermal response, rock mechanics), natural resources, and rock dissolution. Evaluation against postclosure and preclosure RECs yielded a ranking of the five subject rocks with respect to their potential as repository host rocks. Shale was determined to be the most preferred of the five rock types, with sandstone a distant second, the carbonate rocks and anhydrock a more distant third, and chalk a relatively close fourth.
Croff, A.G.; Lomenick, T.F.; Lowrie, R.S.; Stow, S.H.
Microsoft Word - BSA_NonCommercial_Items_Rev13_Apr_2013.docx
3; (Apr-13) 1 of 21 3; (Apr-13) 1 of 21 BROOKHAVEN SCIENCE ASSOCIATES, LLC GENERAL TERMS AND CONDITIONS FOR NONCOMMERCIAL ITEMS AT BROOKHAVEN NATIONAL LABORATORY Table of Contents Article 1 DEFINITIONS ................................................................................................................... 3 Article 2 ORDER OF PRECEDENCE ............................................................................................. 3 Article 3 ACCEPTANCE OF AGREEMENT, SURVIVABILITY ................................................. 4 Article 4 COMPLETE AGREEMENT ............................................................................................. 4 Article 5 RESPECTFUL WORKPLACE POLICY .......................................................................... 4
DOE Hosts Festival to Collect Items for Area Food Banks | Department of
Festival to Collect Items for Area Food Banks Festival to Collect Items for Area Food Banks DOE Hosts Festival to Collect Items for Area Food Banks July 1, 2012 - 12:00pm Addthis The DOE Feeds Families Fest and Hunger Awareness Event are from 11 a.m. to 2 p.m. at the Forrestal West Plaza in Washington, D.C. The DOE Feeds Families Fest and Hunger Awareness Event are from 11 a.m. to 2 p.m. at the Forrestal West Plaza in Washington, D.C. WASHINGTON, D.C. - Deputy Secretary of Energy Daniel Poneman and a representative of the Capital Area Food Bank are among the guest speakers at an event this Tuesday, July 31, to collect food items for the DOE Feeds Families drive. The DOE Feeds Families Fest and Hunger Awareness Event are from 11 a.m. to 2 p.m. at the Forrestal West Plaza in Washington, D.C. The fest features an
Microsoft Word - BSA_NonCommercial_Items_Rev12_Jan_2013.docx
2; (Jan-13) 1 of 21 2; (Jan-13) 1 of 21 BROOKHAVEN SCIENCE ASSOCIATES, LLC GENERAL TERMS AND CONDITIONS FOR NONCOMMERCIAL ITEMS AT BROOKHAVEN NATIONAL LABORATORY Table of Contents Article 1 DEFINITIONS ................................................................................................................... 3 Article 2 ORDER OF PRECEDENCE ............................................................................................. 3 Article 3 ACCEPTANCE OF AGREEMENT, SURVIVABILITY ................................................. 4 Article 4 COMPLETE AGREEMENT ............................................................................................. 4 Article 5 RESPECTFUL WORKPLACE POLICY .......................................................................... 4
Microsoft Word - BSA_Commercial_Items_Rev12_Jan_2013.docx
Comm, Rev. 12; (Jan-13) 1 of 12 Comm, Rev. 12; (Jan-13) 1 of 12 BROOKHAVEN SCIENCE ASSOCIATES, LLC GENERAL TERMS AND CONDITIONS FOR COMMERCIAL ITEMS AT BROOKHAVEN NATIONAL LABORATORY Table of Contents Article 1 DEFINITIONS ................................................................................................................... 2 Article 2 ORDER OF PRECEDENCE ............................................................................................. 2 Article 3 ACCEPTANCE OF AGREEMENT, SURVIVABILITY ................................................. 3 Article 4 COMPLETE AGREEMENT ............................................................................................. 3 Article 5 RESPECTFUL WORKPLACE POLICY .......................................................................... 3
Virtual item sales as a revenue model: identifying attributes that drive purchase decisions
The global market for virtual items, characters and currencies was estimated to exceed 2.1 Billion USD in 2007. Selling virtual goods for real money is an increasingly common revenue model not only for online games and virtual worlds, but for social ... Keywords: Business model, Consumer behaviour, Online communities, Purchase drivers, RMT, Virtual consumption
Vili Lehdonvirta
Peer-to-peer inventory management of returnable transport items: A design science approach
The packaged gas industry suffers from the loss of gas cylinders due to ineffective inventory management and lack of suitably robust identification technologies. This paper takes a design science approach to this problem and contributes a prototype inventory ... Keywords: Inventory, Packaged gas, RFID, Returnable transport item, Wireless sensor network
Alex Mason; Andy Shaw; Ahmed Al-Shamma'a
Plutonium Finishing Plant (PFP) Criticality Alarm System Commercial Grade Item (CGI) Critical Characteristics
This document specifies the critical characteristics for Commercial Grade Items (CGI) procured for PFP's criticality alarm system as required by HNF-PRO-268 and HNF-PRO-1819. These are the minimum specifications that the equipment must meet in order to properly perform its safety function. There may be several manufacturers or models that meet the critical characteristics for any one item. PFP's Criticality Alarm System includes the nine criticality alarm system panels and their associated hardware. This includes all parts up to the first breaker in the electrical distribution system. Specific system boundaries and justifications are contained in HNF-SD-CP-SDD-003, ''Definition and Means of Maintaining the Criticality Detectors and Alarms Portion of the PFP Safety Envelope.'' The procurement requirements associated with the system necessitates procurement of some system equipment as Commercial Grade Items in accordance with HNF-PRO-268, ''Control of Purchased Items and Services.''
Personalized mobile English vocabulary learning system based on item response theory and learning memory cycle
Since learning English is very popular in non-English speaking countries, developing modern assisted-learning tools that support effective English learning is a critical issue in the English-language education field. Learning English involves memorization ... Keywords: English vocabulary learning, Item response theory, Learning memory cycle, Mobile learning, Personalized learning
Chih-Ming Chen; Ching-Ju Chung
Extracting Hyponyms of Prespecified Hypernyms from Itemizations and Headings in Web Documents
Extraction Algorithm Car Company List Toyota Honda Nissan Car List Toyota Honda Nissan (A) (B) Figure 1. A hyponym tends to have more than one hypernym. For instance, "Toyota" can have at least two hypernyms, because the itemizations suggesting that "Toyota" is a "car" are likely to again include the names
Guideline for the Utilization of Commercial Grade Items in Nuclear Safety Related Applications (NCIG-07)
The reduced availability of spare and replacement parts designed specifically for nuclear safety related components has made it necessary for utilities to purchase commercial grade parts. This study, the seventh in a series cosponsored by the Nuclear Construction Issues Group (NCIG), outlines an acceptance procedure for ensuring that commercial grade items conform with requirements for their use in safety related applications.
8/16/2012 Texas Tech University Item Dept. Lab Name Cost
Student Project Work Benches ME Machine Shop $10,398 BOD Incubator CEE Environmental $6,000 Centrifugal Pump Demonstration Unit CEE Fluids $13,600 Centrifuge CEE Environmental $8,000 Concrete Compression - alphabetical by item Fourier Transform Infrared Spectrometer ChemE Undergraduate Teaching Labs $40,000 Gas
Gelfond, Michael
Torsion-balance probes of fundamental physics
This white paper is submitted as part of Snowmass2013 (subgroup CF2). The extraordinary sensitivity of torsion-balances can be used to search for the ultra-feeble forces suggested by attempts to unify gravity with the other fundamental interactions. The motivation, the results and their implications as well as the future prospects of this work are summarized. The experiments include tests of the universality of free fall (weak equivalence principle), probes of the short-distance behavior of gravity (inverse-square law tests for extra dimensions and exchange forces from new meV scale bosons), and Planck-scale tests of Lorentz invariance (preferred-frame effects, non-commutative geometries).
E. G. Adelberger
Current drive, anticurrent drive, and balanced injection
In lower hybrid (LH) discharges, the number of suprathermal electrons is limited by the upper bound on the current density from the q = 1 condition, which is caused by the onset of the m = 1 MHD instability. The stored energy of suprathermal electrons, measured in terms of a poloidal beta, scales with plasma current as I/sub p//sup -1/. Potentially, these bounds represent very restrictive conditions for heating in larger machines. Consequently, it seems necessary to perform experiments where the electrons are driven in both directions, parallel and antiparallel to the magnetic field, i.e., bidirectional scenarios like anticurrent drive or balanced injection. Data from PLT relevant to these ideas are discussed. 6 refs., 4 figs.
von Goeler, S.; Stevens, J.; Beiersdorfer, P.; Bell, R.; Bernabei, S.; Bitter, M.; Cavallo, A.; Chu, T.K.; Fishman, H.; Hill, K.
An Analytical Model for Solute Transport in Unsaturated Flow through a Single Fracture and Porous Rock Matrix
fracture � matrix solute source rock matrix rock matrix vin fracture; b) solute source in rock matrix. Draft 8-11-04for a point source in the rock matrix are presented in
Houseworth, J.E.
Balance-of-System Equipment Required for Renewable Energy Systems |
Balance-of-System Equipment Required for Renewable Energy Systems Balance-of-System Equipment Required for Renewable Energy Systems Balance-of-System Equipment Required for Renewable Energy Systems July 2, 2012 - 8:21pm Addthis Both grid-connected and off-grid home renewable energy systems require additional âbalance-of-systemâ equipment. Both grid-connected and off-grid home renewable energy systems require additional "balance-of-system" equipment. How does it work? With a stand-alone system, depending on your needs, balance-of-system equipment could account for half of your total system costs. For both stand-alone and grid-connect systems, you will need power conditioning equipment, safety equipment, and meters and instrumentation. For stand-alone systems, you will also want batteries and charge controllers.
Work Life Balance | Y-12 National Security Complex
Work Life Balance Work Life Balance Work Life Balance Working at Y-12 has many advantages. In addition to the many benefit options, Y-12 also offers opportunities for a great work-life balance. Community Involvement Y-12 is a proud member of the community. Employees participate in the United Way annual giving campaign and serve as volunteers for charitable groups in the communities where they live and work. Each year Y-12 employees participate in a day of volunteering for local charities (on average 300-plus employees participate each year). Flexible Work Options Y-12 encourages employees to achieve a healthy personal balance among home, work and the community. One of the ways we embrace work-life balance is by offering flexible work arrangements that provide alternatives to the
DOE - Office of Legacy Management -- Rock Island Arsenal - IL 09
Rock Island Arsenal - IL 09 Rock Island Arsenal - IL 09 FUSRAP Considered Sites Site: ROCK ISLAND ARSENAL ( IL.09 ) Eliminated from consideration under FUSRAP - Referred to DOD Designated Name: Not Designated Alternate Name: None Location: Rock Island , Illinois IL.09-1 Evaluation Year: 1987 IL.09-2 Site Operations: Site located on a DOD facility and operated under AEC control. Exact nature or time period of operations not clear. No indication that radioactive materials were involved. Contract work with Albuquerque Operations office performed. IL.09-1 IL.09-2 Site Disposition: Eliminated - No Authority - Referred to DOD IL.09-2 Radioactive Materials Handled: None Indicated IL.09-2 Primary Radioactive Materials Handled: None Indicated Radiological Survey(s): None Indicated
DOE - Office of Legacy Management -- WNI Split Rock Site - 043
Split Rock Site - 043 Split Rock Site - 043 FUSRAP Considered Sites Site: WNI Split Rock Site (043) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition: Radioactive Materials Handled: Primary Radioactive Materials Handled: Radiological Survey(s): Site Status: The Western Nuclear, Inc. (WNI) Split Rock site is a Uranium Mill Tailings Remedial Action (UMTRA) Title II site located in Jeffrey City, Wyoming. UMTRA Title II sites are privately owned and operated sites that were active when the Uranium Mill Tailings Control Act was passed in 1978. The majority of the milling conducted at these sites was for private sale, but a portion was sold to the U.S. Government. After the owner completes U.S. Nuclear Regulatory Commission license termination, the Department of
Photo of the Week: Laser Beats Rock | Department of Energy
Laser Beats Rock Laser Beats Rock Photo of the Week: Laser Beats Rock April 8, 2013 - 5:28pm Addthis On August 5, 2012, the Curiosity rover touched down on the surface of Mars. The ChemCam instrument package, developed at Los Alamos National Laboratory, is a device mounted on the Mars Curiosity rover that uses two remote sensing instruments: the Laser-Induced Breakdown Spectrometer (LIBS) and a Remote Micro-Imager (RMI). The LIBS fires a powerful laser that determines chemical compositions of rock and soil samples, while the RMI takes photos of the samples within the rover's vicinity. In this photo, the ChemCam is being prepared in the clean room prior to the launch of NASA's Mars Science Laboratory mission. Learn more about the ChemCam. | Photo courtesy of Los Alamos National Laboratory.
Isotopic Analysis- Rock At Coso Geothermal Area (1997) | Open Energy
Rock At Coso Geothermal Area (1997) Rock At Coso Geothermal Area (1997) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Rock At Coso Geothermal Area (1997) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Isotopic Analysis- Rock Activity Date 1997 Usefulness useful DOE-funding Unknown Exploration Basis Determine a major lithospheric boundary Notes Sr and Nd isotope ratios of Miocene-Recent basalts in eastern California, when screened for crustal contamination, vary dramatically and indicate the presence of a major lithospheric boundary that is not obvious from surface geology. Isotope ratios from the Coso field form a bull's-eye pattern with very low 87Sr/86Sr (0.7033) centered just south of the geothermal area. The
Rock Sampling At Florida Mountains Area (Brookins, 1982) | Open Energy
source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Rock Sampling At Florida Mountains Area (Brookins, 1982) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Rock Sampling At Florida Mountains Area (Brookins, 1982) Exploration Activity Details Location Florida Mountains Area Exploration Technique Rock Sampling Activity Date Usefulness not indicated DOE-funding Unknown Notes Radiogenic heat production analysis from U,Th,K concentrations. References D. G. Brookins (1982) Potassium, Uranium, Thorium Radiogenic Heat Contribution To Heat Flow In The Precambrian And Younger Silicic Rocks Of The Zuni And Florida Mountains, New Mexico (Usa)
Permeability Estimation From Velocity Anisotropy In Fractured Rock
Cracks in a rock mass subjected to a uniaxial stress will be preferentially closed depending on the angle between the fracture normal vectors and the direction of the applied stress. If the prestress fracture orientation ...
Gibson, Richard L., Jr.
Figure 2. Stratigraphic Summary of Ages, Names and Rock Types...
2. Stratigraphic Summary of Ages, Names and Rock Types in the ANWR 1002 and Coastal Plain Area of the Alaska North Slope. Potentially Productive Reservoirs and Plays Assessed by...
Influence of soil parameters on the motion of rocking walls
Introduced as a system in earthquake engineering in 2004 [6], rocking walls are a fairly new system in earthquake engineering. Their performance has been proven, both in research as in practice. However, a few uncertainties ...
Houbrechts, Jeroen J. J. (Jeroen Jose Julien)
Laser Rock Drilling Demo - The NE Multimedia Collection
Demo A high power pulsed Nd:YAG laser beam at Argonne's Laser Applications Lab is being shown in this movie to drill oil reservoir rock, a potential application in gas and oil well...
Laser Spallation of Rocks for Oil Well Drilling
LASER SPALLATION OF ROCKS FOR OIL WELL DRILLING Zhiyue Xu 1 , Claude B. Reed 1 , Richard Parker 2 , Ramona Graves 3 1 Argonne National Laboratory, Argonne, IL 60439, USA 2 Parker...
Geothermal: Sponsored by OSTI -- CO2-Rock Interactions in EGS...
Office of Scientific and Technical Information (OSTI)
CO2-Rock Interactions in EGS-CO2: New Zealand TVZ Geothermal Systems as a Natural Analog Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On...
Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal
Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal Area, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal Area, California Details Activities (1) Areas (1) Regions (0) Abstract: Coso is one of several high-temperature geothermal systems associated with recent volcanic activity in the Basin and Range province. Chemical and fluid inclusion data demonstrate that production is from a narrow, asymmetric plume of thermal water that originates from a deep reservoir to the south and then flows laterally to the north. Geologic controls on the geometry of the upwelling plume were investigated using petrographic and analytical analyses of reservoir rock and vein material.
Power balance in a helicon plasma source for space propulsion.
??Electric propulsion systems provide an attractive option for various spacecraft propulsion applications due to their high specific impulse. The power balance of an electric thruster� (more)
White, Daniel B., Jr
Variable Renewable Generation Can Provide Balancing Control to...
Variable Renewable Generation Can Provide Balancing Control to the Electric Power System e Active Power Control Helps Maintain System Frequency As wind and solar plants become more...
12/31/2012 - Handbook on Material and Energy Balance Calculations in Materials Processing, Third Edition (2011), by Arthur E. Morris, Gordon H. Geiger, and�...
RTO and Balancing AuthoritProposals for EIA Surveys
... Integration of renewable generation Implementation of demand response Integration of new ... RTO and Balancing AuthoritProposals for EIA Surveys Author: USCX ...
New Zealand Energy Data: Electricity Balance and Market Data...
electricity. Included here are three datasets: electricity energy balance (2005 - 2009), electricity market snapshot (2009), and market competition statistics (2004 - 2009)....
FY 2012 Annual Uncosted Balances Report | Department of Energy
Balances Reports Budget Environmental & ES&H Liabilities Financial Management Handbook LDR&D Annual Reports Testimony This report presents the results of the Department's...
FY 2011 Annual Uncosted Balances Report | Department of Energy
Balances Reports Budget Environmental & ES&H Liabilities Financial Management Handbook LDR&D Annual Reports Testimony This report represents an analysis of the Department's...
FY 2010 Annual Uncosted Balances Report | Department of Energy
Balancing the Properties of Structural Mo-Borosilicide Alloys for ...
Symposium, Advanced Protective Coatings for Refractory Metals and Alloys. Presentation Title, Balancing the Properties of Structural Mo-Borosilicide Alloys for�...
Energy Basics: Flat-Plate Photovoltaic Balance of System
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Balance of System Complete photovoltaic (PV) energy systems are composed of three subsystems. On the power-generation side, the first subsystem of PV devices (cells, modules, and...
Automated Load Balancing of Medium-Voltage Distribution Circuits
The objective of this project is to investigate the possibility of using an automated system to maintain optimal load balance in distribution circuits. The practice used by many utilities is to use a line crew and engineering personnel to measure load balance at key points in each circuit and manually move single-phase lateral taps to different phases to obtain the desired load balance among the phases. This practice has many shortcomings: The load balance is achieved only for a single point in ...
Final Report: Balancing energy conservation and occupant needs...
for "Big Box" stores in California: predicted indoor air quality and energy consumption using a matrix of ventilation scenarios Title Final Report: Balancing energy...
Comments on EIA-930 Balancing Authority Operations Report:
Annual Energy Outlook 2012 (EIA)
EIA-930 Balancing Authority Operations Report: a) Whether the proposed collection of information is necessary for the proper performance of the functions of the agency including...
Comments on EIA-930 Balancing Authority Operations Report
Comments on EIA-930 Balancing Authority Operations Report: a) Whether the proposed collection of information is necessary for the proper performance of the functions ...
O Balanced Scorecard como instrumento de aprendizagem estrat�gica.
??The overall purpose of this research is to verify if the implementation of the managerial practice balanced scorecard stimulates the occurrence of strategic learning. The� (more)
Lu�s Eduardo de Carvalho
Enhancing Electron Photoemission with Nanopillar Array Enhancing Electron Photoemission with Nanopillar Array Figures: An array of nano-sized gold pillars, (a), creates a plasmonic surface resonance. (B), photoelectron kinetic energy spectrum for electrons ejected from the nanopillar array, showing significant increases compared to a flat gold surface. Working with the Molecular Foundry's Bruce Harteneck, researchers in the Lab's Ultrafast Materials and Chemical Sciences programs have verified and measured a boost in photoemitted-electron energies when assisted by the plasmonic field of a gold nanopillar array. Such enhancement provides a way to investigate plasmon dynamics, important for possible coupling to active electronics. Groups of electrons on a metal surface can oscillate coherently, a phenomenon known as a surface plasmon resonance. When excited by ultrafast
Delia Milliron Delia Milliron Milliron Staff Scientist, Inorganic Nanostructures Synthesis firstname.lastname@example.com 510.486.6723 personal website Biography Delia J. Milliron is a Staff Scientist at Lawrence Berkeley National Laboratory's Molecular Foundry, a research center and user facility for nanoscience supported by the U. S. Department of Energy. She received her PhD in Chemistry from the University of California, Berkeley, in 2004. From 2004 to 2008 she worked for IBM's research division, initially as a postdoctoral researcher and subsequently as a member of the research staff. Her research is motivated by the potential for nanomaterials to introduce new functionality to and reduce manufacturing costs of energy technologies. Her group's activities span from the fundamental chemistry of nanomaterials
Yi Liu Yi Liu Liu Staff Scientist, Organic and Macromolecular Synthesis email@example.com 510.486.6287 personal website Biography Yi Liu is a Staff Scientist in the Organic and Macromolecular Synthesis Facility. He obtained a Ph.D. in Chemistry in 2004 from the University of California, Los Angeles under the direction of Sir. J. Fraser Stoddart. After his postdoctoral research with Professor K. Barry Sharpless at the Scripps Research Institute, San Diego, he joined the Foundry in 2006 as an independent Principle Investigator and was promoted to the career Staff Scientist in 2011. Research Interests Dr. Liu's research aims to achieve coherent control of functionality and properties across different scales through molecular level design and synthesis. With the developed materials chemistry, Dr. Liu has not only
15, 2013 15, 2013 Time: 11:00 am Speaker: Paul Abbyad, Santa Clara University Title: Microfluidic Droplet Arrays for the Study of Red Blood Cell Sickling Location: 67-3111 Chemla room We have developed a novel microfluidic device to study individual red blood cells in droplet arrays. This is a two-phase system where aqueous droplets containing cells are produced and transported in inert carrier oil. Droplets are anchored into an array by the reduction in their surface energy as they enter into microfabricated depressions. Thus, microdroplets are anchored and arranged in a 2-dimensional array against the flow of the carrier oil. The perfluorinated carrier oil has a high solubility for gases and is used as both a sink and source for oxygen exchange with the anchored
Holistic Cell Design by Berkeley Lab Scientists Leads to High-Performance, Holistic Cell Design by Berkeley Lab Scientists Leads to High-Performance, Long Cycle-Life Lithium-Sulfur Battery Researchers at Berkeley Lab, including the Molecular Foundry, have demonstrated in the laboratory a lithium-sulfur (Li/S) battery that has more than twice the specific energy of lithium-ion batteries, and that lasts for more than 1,500 cycles of charge-discharge with minimal decay of the battery's capacity. This is the longest cycle life reported so far for any lithium-sulfur battery. Demand for high-performance batteries for electric and hybrid electric vehicles capable of matching the range and power of the combustion engine encourages scientists to develop new battery chemistries that could deliver more power and energy than lithium-ion batteries, currently the best
Frank Ogletree Frank Ogletree Ogletree Staff Engineer, Imaging and Manipulation of Nanostructures firstname.lastname@example.com 510.486.4862 Biography Education Postdoctoral Research Fellow with Miquel Salmeron developing ultra-high vacuum scanning tunneling microscopy in the Materials and Chemical Sciences Division, Lawrence Berkeley Laboratory, 1987 - 1988. Ph.D. in Experimental Solid State Physics, 1986, University of California, Berkeley, California. Thesis title: "Extending the Range of Low Energy Electron Diffraction (LEED) Surface Structure Determination", advisor Prof. G. A. Somorjai, Department of Chemistry. A.B. with honors in Physics, 1977, College of the University of Chicago, Chicago, Illinois. Previous Professional Positions Staff Engineer/Physicist and acting Lead Scientist, Molecular Foundry
Porous Semiconducting Films Tailored for Future Energy Storage and Porous Semiconducting Films Tailored for Future Energy Storage and Conversion Devices Mesoporous films switch composition from CdSe to PbSe, Cu2Se, and Ag2Se through cation exchange: The architecture of these porous films remained intact and the chemical transformations were demonstrated to be reversible. This robustness is promising for various applications as it suggests that electronic and mechanical properties can be maintained through multiple processing and transformation stages. Scientific Achievement Molecular Foundry researchers have developed a method to create and control mesoporous architecture in metal chalcogenides (a class of semiconductors used in light- and energy-harvesting devices) that was maintained during reversible chemical transformations.
Schwartzberg Schwartzberg SSchwartzberg Staff Engineer, Nanofabrication email@example.com 831.247.4932 Biography Dr. Schwartzberg is a Bay Area and California native, growing up in the East Bay Area. He performed both his undergraduate and Ph.D. work at UC Santa Cruz under Professor Jin Z. Zhang in Physical Chemistry. While at Santa Cruz, he also worked at Lawrence Livermore National Labs as a graduate research fellow under Professor Thomas Huser. In graduate school, his work focused on metal nanoparticle synthesis and the application of metal nanoparticles, including surface enhanced Raman for sensing, and ultrafast electron dynamics. He received two postdoctoral research fellowships, first with Professor Stephen R. Leone at UC Berkeley, then with Dr. Jeff Urban of the Molecular. Both of these positions involved the
Friday, August 2, 2013 Friday, August 2, 2013 Time: 11:00 am Speaker: Prof. Lian-Mao Peng, Peking University Title: Carbon Nanotube Electronics: Extending the Moore Law to the End of the Roadmap and Beyond Location: 67-3111 Chemla room Hosted by: Gary Ren Carbon nanotubes (CNT) are quasi-one-dimensional materials with unique properties and are ideal material for nanoelectronics. In particular, perfect n-type [1-2] and p-type [3] contacts are now available for controlled injection of electrons into the conduction band and holes into the valence band of the CNT, paving the way for a doping free fabrication of CNT based ballistic CMOS [4], high performance optoelectronic devices [5-6], and integrated circuits [7,8]. The feasibility of this doping free CMOS technology has been demonstrated by fabricating CMOS circuits,
Weber-Bargioni Weber-Bargioni Weber-Bargioni Staff Scientist, Imaging and Manipulation of Nanostructures firstname.lastname@example.com 510.486.4026 personal website Biography Education University of Konstanz, Germany Physics B.S., 2001 Portland State University Physics M.S., 2003 University of British Columbia Physics Ph.D., 2007 Lawrence Berkeley Nat. Lab Material Science PostDoc 2008-2010 Research Interests Dr. Weber-Bargioni's research revolves around understanding fundamental opto electronic processes at their native length scales. Specifically, he is focused on understanding and eventually controlling exciton transport through complex nano composites, such as small organic molecule semiconducting films, 1, 2, and 3-D nanocrystal assemblies and nanowire systems. This research requires the employment and development of novel
Uncovering the Intrinsic Size Dependence of Hydriding Phase Transformations Uncovering the Intrinsic Size Dependence of Hydriding Phase Transformations in Nanocrystals Scientific Achievement Revealed fundamental size-dependence of metal nanocrystals undergoing phase transitions. Significance and Impact Findings overturn long-held assumptions about nanoparticle behavior and hold important implications for the future design of hydrogen storage systems, catalysts, fuel cells, and batteries. Research Details Developed a unique optical probe based on luminescence that provided the first direct observations of metal nanocrystals undergoing phase transformations during reactions with hydrogen gas. Used statistical mechanical model to quantify the observational data for palladium nanocubes of all sizes. Rizia Bardhan, Lester O. Hedges, Cary L. Pint, Ali Javey, Stephen
3, 2013 3, 2013 Time: 11:00 am Speaker: Alex Weber-Bargioni, The Molecular Foundry Title: Investigating the Propagation of Optically Excited States and Optoelectronic Processes in Nano Building Block Assemblies Location: 67-3111 Chemla room Controlling individual excited states and their deliberate movement through a material is one of the ultimate goals that will provide material scientist with a complete new freedom to develop novel material functionalities. Realizing such a control would enable to direct energy to specific sites in a material where specific work can be performed. Nano materials have in principle the potential to realize this vision since the material property determining electronic structure can be tuned via geometry, material composition, interfaces and environment. However, we are
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HUMAN RIGHTS, NONDISCRIMINATION, HUMAN RIGHTS, NONDISCRIMINATION, ANTIHARASSMENT AT FERMILAB If you encounter discrimination or harassment at Fermilab, tell someone you trust. Talk to your supervisor, to Equal Employment Opportunity Manager Dianne Engram (4633), or to laboratory management, including the Laboratory Director Michael Witherell. You can call the Fermilab Action Line at 840-4000 to make your concerns known anonymously. If you feel you need to talk with someone outside the laboratory, you can talk directly to Corporate Counsel, URA, Inc., Washington, D.C. at 202-293-1382. You can call the hotline of the Inspector General of the Department of Energy at 1-800-541-1625 or 1-202-586-4073. You can also communicate directly with the DOE Area Manager's Office (x3281). HUMAN RIGHTS POLICY
List List 80+ Reactive Ion Etcher (tool referred to as the RIE by nanofab staff) AAPPTec Apex 396 Peptide Synthesizer AB Sciex TF4800 MALDI-TOF-TOF - Ideal for small molecules and (bio)polymers between 500 and 150,000 Da molecular weights ABM optical contact printer Agilent (Molecular Imaging) PicoPlus Scanning Probe Microscope Agilent 1100 series (ion trap) LC-MS-MS Mass spectrometer Agilent 1100 Series Agilent 1200 nanoHPLC System Agilent 1260 Infinity Agilent analytical HPLC Agilent Capillary Electrophoresis System Agilent Cary 5000 UV-Vis-NIR Spectrophotometer Agilent GC-MS 6890 Chromatograph Agilent Precision Semiconductor Parameter Analyzer Agilent prep and semi-prep HPLC's Aixtron PECVD for carbon nanotubes and graphene Anaerobic chamber Arbin Electrochemical Battery Tester
A Comprehensive Model for Molecular-Bond Formation and Rupture A Comprehensive Model for Molecular-Bond Formation and Rupture Force spectra of ten different kinds of molecular bonds show transition from near-equilibrium to a kinetic regime. Inset, data re-plotted on the natural axes that emerge from the model show that it provides a universal description of bond breaking across the two regimes. Developed a new model for interpreting molecular-bond force spectra and verified it with measurements of ten different molecular systems Resolves inconsistencies in the standard model and provides a comprehensive description of bond formation and rupture Enables prediction of binding free energy of a molecular system, important for both understanding interactions in natural systems and designing synthetic analogues R.W. Friddle, and J.J. De Yoreo, Lawrence Berkeley National Laboratory; A.
24, 2013 24, 2013 Time: 11:00 am Speaker: Prof. Holger Schmidt, UC Santa Cruz Title: Detecting and Controlling the Magnetization Dynamics of Single Nanomagnets Location: 67-3111 Chemla room Hosted by Frank Svec: Many emerging spintronics applications will utilize dense arrays of nanomagnetic elements. Device properties depend on both the intrinsic material properties of each element as well as the magnetic environment. Time-resolved magneto-optics provide a means to extract both static and dynamic material parameters and elucidate sub-picosecond dynamic processes. I will review the challenges and capabilities of applying magneto-optic techniques for magnetic characterization of individual nanomagnets, in particular the first observation of single-domain nanomagnet dynamics and
Urban Urban Jeff Urban Facility Director, Inorganic Nanostructures Lead of LBL DOE Thermoelectrics Program (Acting) firstname.lastname@example.com 510.486.4526 Biography Education Postdoctoral Studies in Synthesis and Measurements of Nanocrystal Transistors, Thermoelectrics, and Photovoltaics with Professor Christopher B. Murray, University of Pennsylvania Graduate Studies in Synthesis and Physical Characterization of Transition Metal Oxide Nanostructures with Professor Hongkun Park, Harvard University Research Interests I am interested in the development of new materials and measurement tools for solid-state energy storage and conversion applications. One central topical area of interest involves investigating transport at the organic-inorganic interface. This marriage of "hard" and "soft" materials
Foundry User Wins "Genius Award" Foundry User Wins "Genius Award" Courtesy of John D. and Catherine T. MacArthur Foundation Molecular Foundry User, Craig Fennie, received one of this year's 24 MacArthur Fellowship Awards - commonly known as "Genius Awards" - for his research on the material properties of new nanostructures. Fennie, assistant professor of applied and engineering physics at Weill Cornell Medical College, has designed new materials with electrical, optical and magnetic properties needed for electronics and communication technology. At the Foundry, he has worked with staff and Users in the Theory of Nanostructured Materials Facility to engineer transition metal oxide thin films to access energetically useful optical properties of photoelectrochemistry. Read the story from the MacArthur Foundation.
October 1, 2013 October 1, 2013 Time: 11:00 am Speaker: Mikhail Zamkov, Bowling Green State University Title: Engineering of Semiconductor Nanocrystals & Nanocrystal Solids for Renewable Energy Applications Location: 67-3111 Chemla room Hosted by Delia Milliron: I will discuss a novel methodology for depositing colloidal semiconductor nanocrystals into all-inorganic solid films with implications both to nanocrystal solar cells and nanocrystal light-emitting devices. The reported strategy utilizes a simple scheme for incorporating PbS or CdSe semiconductor nanocrystals into matrices of a wide-band gap CdS semiconductor for stable and efficient operation of solution-processed devices. The two key benefits of this approach include: (i) all-inorganic architecture promoting superior thermal and chemical stability, and - (ii)
Neaton Neaton Jeff Neaton Director, Molecular Foundry Senior Faculty Scientist, Theory of Nanostructured Materials firstname.lastname@example.com 510.486.4527 personal website Biography Jeffrey B. Neaton is the Director of the Molecular Foundry, where he also serves as a Senior Faculty Scientist in the Theory of Nanostructured Materials Facility. Dr. Neaton received a B.S. in Physics and Astrophysics from the University of Minnesota and a Ph.D. in Physics from Cornell University. He was a Departmental Postdoctoral Associate in Physics at Rutgers University prior to joining the Molecular Foundry, first as a postdoc and then as a staff member. In 2009 he was award the Presidential Early Career Award for Scientists and Engineers, and 2010 he was an National Academy of Sciences Kavli Fellow. Since 2012, he has been Division
Revealing nanorod formation with liquid-cell TEM Revealing nanorod formation with liquid-cell TEM Sequential TEM images show Pt3Fe nanorods forming by first making a kinked chain which then straightens out. On right, High-resolution STEM images reveal changes in crystal orientation as the chains relax. Materials Science Division researcher Haimei Zheng, the Molecular Foundry's Stephen Whitelam, and colleagues have imaged iron-platinum nanoparticle forming from solution, helping resolve a decades-long debate about growth dynamics. By understanding how nanoparticles grow, researchers can better tailor their properties for cheap, efficient energy-related technologies. Researchers have long assumed that nanoparticles grow in solution as molecules gradually attach to a nanoparticle nucleus, but recently they
Making a Map for Nanotube Exploration Making a Map for Nanotube Exploration Figures: Electron diffraction patterns and Rayleigh spectra of carbon nanotubes with different chiral indices. Inset, top, an illustration of a single nanotube suspended across a gapped substrate for measurement. An international team of scientists headed by Feng Wang of the Materials Science Division of Berkeley Lab and Enge Wang of the International Center for Quantum Materials in Beijing, has mapped out an "atlas" of key structural and optical properties of carbon nanotubes. By painstakingly measuring both electron diffraction and optical scattering for hundreds of samples, the team created a reference to accelerate future nanotube studies for fundamental physics research as well as optoelectronic and photonic
Gang (Gary) Ren Gang (Gary) Ren Ren Staff Scientist, Imaging and Manipulation of Nanostructures firstname.lastname@example.com 510.495.2375 personal website Biography Education B.A., Theoretical Physics, Lanzhou University, China, 1986-1990 M.S., Theoretical Physics (General relativity and gauge theory), Lanzhou University, China, 1990-1993, Advisor: Prof. Yi-shi Duan. Thesis: "Theory and Application of 2+1 Dimensional Topological Current" Ph.D. Material Physics (Electron microscopy), Univ. of Science and Technology Beijing, and Beijing Laboratory of Electron Microscopy, Chinese Academy of Science, Beijing, China, 1993-1997, Advisor: Profs. Lian-mao Peng (2012 chair of IUCr -Commission of Electron crystallography) and Kehsin Kuo, Thesis: "Quantitative Electron Diffraction Theory and
Prendergast Prendergast David Prendergast Director (acting), Theory of Nanostructured Materials firstname.lastname@example.com 510.486.4948 website Research Interests My current work focuses on using many-body electronic structure techniques to compute the excited state properties of materials from first-principles, with an emphasis on complex nanostructures, such as carbon nanotubes, which exhibit strong excitonic effects due to quantum confinement. Learn more about my research on my nanotheory page. Current Projects Computing excitonic states with accurate accounting of electron-hole binding via solution of the Bethe-Salpete equation Electron-Hole Interaction in Carbon Nanotubes: Novel Screening and Exciton Excitation Spectra In summary, our analysis shows that the use of an electron-hole interaction
Making Smart Windows Even Smarter Making Smart Windows Even Smarter Nanocrystals of indium tin oxide (shown here in blue) embedded in a glassy matrix of niobium oxide (green) form a composite material that can switch between NIR-transmitting and NIR-blocking states with a small jolt of electricity. A synergistic interaction in the region where glassy matrix meets nanocrystal increases the potency of the electrochromic effect. Scientific Achievement Researchers have created a thin coating of nanocrystals embedded in glass that can dynamically modify sunlight as it passes through a window. Significance and Impact Unlike existing technologies, the coating provides selective control over visible light and heat-producing near-infrared (NIR) light, so windows can maximize both energy savings and occupant comfort in a wide range of
at the Molecular Foundry have designed a thin coating of nanocrystals embedded in glass that can dynamically modify sunlight as it passes through a window. Unlike existing...
Seeing in Color at the Nanoscale: Foundry Scientists Develop a New Nanotech Tool to Probe Solar Energy Conversion If nanoscience were television, we'd be in the 1950s. Although...
to directly observe S-layer formation on mica chips, Foundry scientists show that a kinetic trap occurs during protein self-assembly. Some domains become trapped in high-energy...
CO2 over other species common in exhaust gas, such as nitrogen, making MOFs desirable for carbon capture. The organic linker molecules, on the other hand, have been largely...
in theoretical physics in 2004 from Oxford University, where he used statistical mechanics to study the dynamics of model glass-forming liquids. He was supervised by Juan P....
are developing novel solid supports, synthesis formats, screening methodsand sequencing techniques to facilitate the high-throughputscreening of these libraries for novel...
in the lab. The primary objective was to identify influencing factors that may increase the rate of collaboration via analyses of rejected versus accepted Foundry...
Nanostructures firstname.lastname@example.com 510.486.5526 Biography Education Postdoc with Dr. Craig Brown at the NIST Center for Neutron Research Ph.D in Inorganic Chemistry with...
Beams For the high-rep-rate x-ray beams essential to next generation light sources, electron guns with photocathodes that can deliver tight electron bunches with high charge and...
of pyridine and amine-based molecules in gold junctions. Right, schematic of scanning electron microscope-based setup used to trap and measure individual molecules. Molecular...
Nanofabrication Facility firstname.lastname@example.com 510.486.7339 Research Interests Micro-nano-fabrication, electron-beam lithography, focused ion beam lithography, focused electron...
leader for the Membranes and Mesoscale Assembly at the Joint Center for Artificial Photosynthesis (JCAP). Segalman is also a professor of chemical engineering at UC Berkeley and a...
employed as radiation detector materials in many fields of applied and fundamental research such as medical imaging, high energy physics, astrophysics, oil exploration and...
Engineering Bacteria to Generate Currents Just like electronics, living cells use electrons for energy and information transfer. Despite electrons being a common "language" of the...
R. W. Falcone, 1997 Research Interests My research is focused on understanding the nano- and meso-scale interactions between localized states in materials (i.e. studying the...
Frantisek Svec Frantisek Svec Svec Facility Director, Organic and Macromolecular Synthesis email@example.com 510.486.7964 personal website Biography Frantisek (Frank) received both degrees B.S. in chemistry and Ph.D. in polymer chemistry from the Institute of Chemical Technology, Prague (Czech Republic) in 1965 and 1969, respectively. In 1976 he joined the Institute of Macromolecular Chemistry of the Czechoslovak Academy of Sciences where he was promoted through the ranks to the Head of Department and the Scientific Secretary of the Institute. He accepted an offer and joined faculty at Cornell University in 1992. Since 1997, he is appointed at the University of California, Berkeley. He currently works as Facility Director in the Molecular Foundry of the Lawrence Berkeley National Laboratory. Dr.
Self-assembled Single-layer 2D Frameworks Self-assembled Single-layer 2D Frameworks In the presence of macrocycle rings, rigid triangular struts are jointed and self-assemble in solution to create a supramolecular organic framework (SOF). Each strut contains functional units that resist stacking and results in single-layer 2D structures. Scientific Achievement Foundry Users have created the first 2D supramolecular organic framework (SOF) with honeycomb periodicity using a novel solution-based self-assembly approach. Significance and Impact Highly ordered and tunable SOFs lead to new layer-by-layer routes to the synthesis of complex architectures, with potential applications in gas purification, absorption, separation, sensing, and catalysis. Research Details A cross-linked 2D framework is assembled in water by joining
Combinatorial Nanoscience Shines in Pure Colors Combinatorial Nanoscience Shines in Pure Colors Green/red purity vs. total intensity, observed in the various lanthanide ion combinations. The Molecular Foundry's Delia Milliron and colleagues have employed a powerful combinatorial approach to synthesize nanocrystals that glow in bright, pure colors when excited with near infrared light. - a process known as upconversion. These nanocrystals may allow for biological imaging with less harmful radiation than current methods, and can be more easily tracked and quantified due to their single color emission. Milliron's team used a wide-sweeping approach to identify promising lanthanide ion combinations, using the automatic synthesis robot, WANDA, able to perform 96 different reactions in parallel. Ultimately four
Changes in Fermilab Site Security Changes in Fermilab Site Security Site Security Questions and Answers The Department of Energy has recently approved changes to the Fermilab Security Plan. These changes, which will go into effect on January 24, Security Map Fermilab map showing the public areas and restricted sections on site. (Click on image for larger version.) 2005, will ease some of the site access restrictions that have been in place since 9/11 while at the same time enhancing the overall security of the Fermilab site. Here are the highlights of the coming changes in Fermilab site security: A central corridor of public areas, shown on the attached map, will enable the public to visit much of the Fermilab site without the need for visitors' passes. The public areas include most of the recreational
Foundry User Alveo Energy Receives $4M from ARPA-E Foundry User Alveo Energy Receives $4M from ARPA-E Alveo Energy-a Bay Area start-up company and Molecular Foundry user-has been awarded $4 million by ARPA-E for their project, "Open Framework Electrode Batteries for Cost-Effective Energy Storage." This venture seeks to develop a new class of batteries based on the pigment Prussian Blue to provide efficient, cost-effective support of renewable energy sources. "This ARPA-E award is an enormous opportunity for Alveo." says Colin Wessells, CEO and lead researcher for Alveo Energy. "It will allow us to rapidly push our battery technology from the final stages of lab R&D through initial pilot-scale production. " The new batteries use a family of electrode materials based on a common and
3 3 Probing carrier dynamics below the surface of solar cells (A) Schematic of the 2P microscope. 2D hyperspectral maps of lifetime were created by moving the laser excitation throughout the sample. (B) Comparison of lifetimes measured with 1P and 2P microscopy. A 10x difference in lifetime is seen between traditional 1P surface measurements and the 2P sub-surface measurements. Below, cross-section depth maps of two-photon TRPL of CdTe: total PL (left); fast (center) and slow (right) lifetime components of biexponential fit, indicating potential for 3D tomography. Scientific Achievement Optically probed the charge carrier lifetime below the surface of solar materials using two-photon (2P) time-resolved PL mapping, and demonstrated that the traditional one-photon (1P) technique can underestimate the bulk
Deirdre Olynick Deirdre Olynick Olynick Staff Scientist, Nanofabrication firstname.lastname@example.com 510.495.2893 Biography Education B. S. Engineering, North Carolina State University, Raleigh, N. C. Ph.D. Department of Materials Science and Engineering. University of Illinois at Urbana-Champaign. Advisor: J. Murray Gibson. Fannie and John Hertz Fellowship Thesis: "In situ Studies of Copper Nano-particles Using a Novel Tandem Ultra-High Vacuum Particle Production Chamber Transmission Electron Microscope" Past Professional Positions Applied Materials and Technology and Matrix Integrated Systems, Senior Process Engineer Research Interests Dr. Olynick straddles the boundary between Materials Science and Chemistry to understand the science behind nanofabrication. Dr. Olynick studies
Alison Hatt to Direct User Program Alison Hatt to Direct User Program Alison Hatt has been chosen to head the Molecular Foundry's User Program. She is succeeding David Bunzow, who is retiring this month. As User Program Director, Alison will be responsible for overseeing the Foundry's scientific proposal process, including administration associated with User proposal submissions, peer reviews, and scheduling approved projects; working with scientific staff to reach out to and grow new diverse, engaged and productive User communities; liaising with User Executive Committee leadership; and supervising the User Program Office staff. As a former Foundry postdoctoral scientist, Alison brings a diverse skill set and unique experience to the position. Since 2011, she has served as Public Affairs Specialist for the Materials Sciences Division (MSD) where
Weber-Bargioni Shares Love of Bike Racing with Local Community Weber-Bargioni Shares Love of Bike Racing with Local Community If you've ever tried to take a sharp turn at high speed on a bicycle, you may have wished you knew more about bicycle physics. And while the basic movement feels simple, riding a bike is in fact quite complex. "It turns out the physics of riding a bike are really, really hard," confessed Alex Weber-Bargioni, a Berkeley Lab materials scientist. Weber-Bargioni was addressing a standing-room-only crowd at the Actual Café in North Oakland recently, in the first of a new series called "Actual Science" Sponsored by Berkeley Lab's Materials Sciences Division. A nanoscientist by day, Weber-Bargioni helps pioneer new approaches to studying the way light interacts with matter, a crucial aspect of today's burgeoning solar-energy
Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide
Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Project Description Supercritical CO2 is currently becoming a more common fluid for extracting volatile oil and fragrance compounds from various raw materials that are used in perfumery. Furthermore, its use as a heat transmission fluid is very attractive because of the greater uptake capability of heat from hot reservoir rock, compared with that of water. However, one concern was the reactivity of CO2 with clay and rock minerals in aqueous and non-aqueous environments. So if this reaction leads to the formation of water-soluble carbonates, such formation could be detrimental to the integrity of wellbore infrastructure.
Rock Physics of Geologic Carbon Sequestration/Storage
This report covers the results of developing the rock physics theory of the effects of CO{sub 2} injection and storage in a host reservoir on the rock?s elastic properties and the resulting seismic signatures (reflections) observed during sequestration and storage. Specific topics addressed are: (a) how the elastic properties and attenuation vary versus CO{sub 2} saturation in the reservoir during injection and subsequent distribution of CO{sub 2} in the reservoir; (b) what are the combined effects of saturation and pore pressure on the elastic properties; and (c) what are the combined effects of saturation and rock fabric alteration on the elastic properties. The main new results are (a) development and application of the capillary pressure equilibrium theory to forecasting the elastic properties as a function of CO{sub 2} saturation; (b) a new method of applying this theory to well data; and (c) combining this theory with other effects of CO{sub 2} injection on the rock frame, including the effects of pore pressure and rock fabric alteration. An important result is translating these elastic changes into synthetic seismic responses, specifically, the amplitude-versus-offset (AVO) response depending on saturation as well as reservoir and seal type. As planned, three graduate students participated in this work and, as a result, received scientific and technical training required should they choose to work in the area of monitoring and quantifying CO{sub 2} sequestration.
Dvorkin, Jack; Mavko, Gary
Mimbres rock art: a graphic legacy of cultural expression
Rock art abounds along the Mimbres River banks and drainage tributaries reflecting the rich cultural remains of the ancient Mimbres people. The Mimbres are a well established cultural group who lived in southwest New Mexico and northern Mexico from A.D. 200 and A.D. 1150. Physical remains of pithouses, pueblos, irrigation systems, artifacts, and rock art have survived the years to provide clues for contemporary understanding of this prehistoric culture and society. Knowledge of the symbolism and belief system has eluded understanding or remained sketchy as a result of examining only physical remains. Based on the hypothesis that by studying the archaeological record and the established characteristics of cultures with origins similar to those of the Mimbres, then assumptions can be made and applied to the understanding of the symbolism, purpose, and use of the rock art for the Mimbres. Specific to this study is the rock art adjacent to and within a one and one-half mile radius of the NAN Ranch Ruin. Research reveals how the rock art of the NAN Ranch Ruin connects to: 1) cultural context to other regional systems, 2) spatial context within the landscape, 3) temporal context with respect to Mimbres development, and 4) symbolic context, tying the rock art to its environment and revealing it as a living part of the universe as it fits into the world view of those who created it.
Tidemann, Kathryn
Location, age, and rock type of volcanic rocks younger than 5 million years in Arizona and New Mexico
As part of the assessment of the Hot Dry Rock geothermal energy potential of Arizona and New Mexico, a compilation of the locations and ages of volcanic rocks less than 5 Myr was made. The locations of those rocks less than 3 Myr are shown on a map of the region. Because the compiled information has many uses in addition to geothermal exploration, the entire compilation is presented as a tabulation. The table is organized first by state and secondly by latitude and longitude within each state. Rock type, age and error, method of dating, and original reference are also given. The K-Ar dates have not been recalculated using the most recent decay constants for /sup 40/K. A few references gave only verbal descriptions of sample location; these locations were converted to approximate latitude and longitude.
Aldrich, M.J. Jr.; Laughlin, A.W.
What Motivates People to Purchase Digital Items on Virtual Community Websites? The Desire for Online Self-Presentation
The sale of digital items, such as avatars and decorative objects, is becoming an important source of revenue for virtual community (VC) websites. However, some websites are unable to leverage this source of revenue, and there is a corresponding lack ... Keywords: VC involvement, VC norms, desire for online self-presentation, digital item purchase, online presentation self-efficacy, virtual community
Hee-Woong Kim; Hock Chuan Chan; Atreyi Kankanhalli
Environmental assessment of remedial action at the slick rock Uranium Mill Tailings sites Slick Rock, Colorado
The Uranium Mill Tailings Radiation Control Act of 1978 (42 USC {section} 7901 et seq.), hereafter referred to as the UMTRCA, authorized the U.S. Department of Energy (DOE) to clean up two uranium mill tailings processing sites near Slick Rock, Colorado, in San Miguel County. The purpose of the cleanup is to reduce the potential health effects associated with the radioactive materials remaining on the sites and on vicinity properties (VPs) associated with the sites. Contaminated materials cover an estimated 55 acres of the Union Carbide (UC) processing site and 12 ac of the North Continent (NC) processing site. The total estimated volume of contaminated materials is approximately 61 8,300 cubic yards. In addition to the contamination in the two processing site areas, four VPs were found to contain contamination. As a result of the tailings being exposed to the environment, contamination associated with the UC and NC sites has leached into shallow ground water. Surface water has not been affected. The closest residence is approximately 0.3 air mi from either site. The proposed action is to remediate the UC and NC sites by removing all contaminated materials within the designated site boundaries or otherwise associated with the sites, and relocating them to, and stabilizing them at, a location approximately 5 road mi (8 km) northeast of the sites on land administered by the Bureau of Land Management (BLM). Remediation would be performed by the DOE`s Uranium Mill Tailings Remedial Action (UMTRA) Project. All solid contaminated materials would be buried under 5 feet (ft) of rock and soil materials. The proposed disposal site area is currently used by ranchers for cattle grazing over a 7-month period. The closest residence to the proposed disposal site is 2 air mi. An estimated 44 ac of land would be permanently transferred from the BLM to the DOE and restricted from future use.
Particle balance in a TFTR supershot
Particle balance in a TFTR supershot is studied self-consistently. The TRANSP analysis code is used to model plasma parameters within the last closed flux surface, deriving time-dependent plasma profiles from measurements. The poloidal flux surfaces are derived using TRANSP and an equivalent-filament analysis code which distributes axisymmetric currents to match measurements of the poloidal field and flux and the total plasma current. The plasma in the edge and scrape off regions are modeled during a relatively steady state phase of the neutral beam injection using the B2 code which calculates plasma profiles in 2 dimensions. The recycled hydrogenic neutrals from the limiter are modeled with the DEGAS neutrals code. The recycling rates within the last closed flux surface are input into TRANSP. The edge and scrape off modeling results are compared with those from TRANSP in the main plasma and with measurements of the D{sub {alpha}} emission and thermocouple measurements of temperature increases in the inner limiter. The recycling coefficients at the last closed flux surface and at the limiter are discussed.
Budny, R.V.; Coster, D.; Stotler, D.; Bell, M.G.; Janos, A.C.; Owens, D.K.
Deriving the shape factor of a fractured rock matrix
Fluid flow from a fractured rock matrix was investigated for accurately predicting oil recovery from fractured reservoirs. To relate the oil rate with rock geometry and average rock matrix pressure, a shape factor is used in the mathematical model of fractured reservoirs. The shape factor in the transfer function was derived by solving the three-dimensional diffusivity equation of a rock matrix block under unsteady-state production, in contrast to the quasi-steady-state condition assumed by most previous studies denoted in the literature. The diffusivity equation in the x, y, and z coordinate was solved in four cases by assuming different boundary conditions of (1) constant fracture pressure; (2) constant flow rate; (3) constant fracture pressure followed by linearly declining fracture pressure; and (4) linearly declining fracture pressure followed by constant fracture pressure. Shape factor values are high at the initial depletion stage under an unsteady-state condition. When the fracture pressure is constant, the shape factor converges to {pi}{sup 2}/L{sup 2}, 2{pi}{sup 2}/L{sup 2}, and 3{pi}{sup 2}/L{sup 2} for one-, two-, and three-dimensional rock matrix, respectively, at the dimensionless time ({tau}) of about 0.1. When the flow rate between the rock matrix and the fracture is constant, the fracture pressure varies with location on the rock surface. Based on the average fracture pressure, the shape factor decreases with production time until a {tau} value of 0.1 is reached. The boundary conditions of constant fracture pressure followed by a constant decline in fracture pressure are equivalent to the condition of a constant fracture pressure followed by a period of constant flow rate.
Chang, Ming-Ming
Constrained flow control in storage networks: Capacity maximization and balancing
This paper studies the control of distributed storage networks with guarantees of constraints satisfaction and asymptotic stability. We consider two problems: network capacity maximization and network balancing. In the first part of the paper we describe ... Keywords: Capacity maximization, Load balancing, Model predictive control, Reachable sets, Storage networks
Claus Danielson, Francesco Borrelli, Douglas Oliver, Dyche Anderson, Tony Phillips
Development of Energy Balances for the State of California
U.S. Energy Information Administration, 2004b. Crude Oil and Petroleum Product ImportsImports 1795 In-State Crude Oil Source: Petroleum, NGL & Feedstock 4527 Transportation California Energy Balances database (CALEB) using data from U.S.Imports 1795 In-State Crude Oil Source: Petroleum, NGL & Feedstock 4527 Transportation California Energy Balances database (CALEB) using data from U.S.
Murtishaw, Scott; Price, Lynn; de la Rue du Can, Stephane; Masanet, Eric; Worrell, Ernst; Sahtaye, Jayant
Load Balancing Content-Based Publish/Subscribe Systems
Distributed content-based publish/subscribe systems suffer from performance degradation and poor scalability caused by uneven load distributions typical in real-world applications. The reason for this shortcoming is the lack of a load balancing scheme. ... Keywords: PADRES, Publish/subscribe, ToPSS, content-based routing, load balancing, load estimation, offload algorithms, subscriber migration
Alex King Yeung Cheung; Hans-Arno Jacobsen
Active Burner Balancing Technology Review: Interim Progress Report
In an effort to reduce NOx emissions and improve unit performance, EPRI has been investigating combustion optimization on large power plant boilers. Achieving proper balance among all burners in a furnace is one of the primary ways to improve the combustion process. Currently, burner balancing is performed only periodically and not continuously.
The landfill methane balance: Model and practical applications
A rational mass-balance framework is described for improved quantification of landfill methane processes at a given site. The methane balance model examines the partitioning of methane generated into methane recovered (via extraction systems), methane emitted, methane oxidized, methane migrated, and methane storage. This model encourages use of field-based data to better quantify rates of methane recovery and emissions.
Bogner, J.; Spokas, K.
Non-Conforming Dynamic Scheduling Host Balancing Authority Operating Agreement
CAISO states that this type of agreement is applicable to the operators of balancing authority areas hosting resources located outside the CAISO�s balancing authority area that wish to schedule dynamic imports of energy and energy associated with ancillary services (except regulation service, unless otherwise specified) into the CAISO balancing authority area. See CAISO April 5, 2010 Filing at 2.20100604-3026 FERC PDF (Unofficial) 06/04/2010 Docket No. ER10-1015-000 2 River Power, L.P. (Gila River) (Agreement) as a non-conforming service agreement. 3 The Agreement establishes the terms and conditions for the operation of dynamic scheduling 4 functionality from the Gila River host balancing authority area to the CAISO balancing authority area. 5 CAISO states that the Agreement requires compliance with the applicable provisions of the CAISO Open Access Transmission Tariff (CAISO tariff). 2. CAISO states that the host balancing authority area in which Gila River is located is not adjacent to the CAISO balancing authority area. CAISO explains that there are two intermediary balancing authorities (Arizona Public Service Company and Salt River
Washington D. C; Bird Llp; Attn Bradley; R. Miliauskas
Multi-objective fuzzy assembly line balancing using genetic algorithms
This paper presents a fuzzy extension of the simple assembly line balancing problem of type 2 (SALBP-2) with fuzzy job processing times since uncertainty, variability, and imprecision are often occurred in real-world production systems. The jobs processing ... Keywords: Assembly line balancing, Fuzzy logic, Fuzzy numbers, Genetic algorithms, Multi-objective optimization
P. Th. Zacharia; Andreas C. Nearchou
Workload-Aware Load Balancing for Clustered Web Servers
We focus on load balancing policies for homogeneous clustered Web servers that tune their parameters on-the-fly to adapt to changes in the arrival rates and service times of incoming requests. The proposed scheduling policy, AdaptLoad, monitors the incoming ... Keywords: Clustered Web servers, self-managing clusters, load balance, locality awareness, workload characterization, static and dynamic pages.
Qi Zhang; Alma Riska; Wei Sun; Evgenia Smirni; Gianfranco Ciardo
Momentum and Energy Balance of the Mediterranean Outflow
Field data taken in the Gulf of Cadiz have been analyzed to describe some aspects of the momentum andenergy balance of the Mediterranean outflow. A crucial component of the momentum balance is the total stress(entrainment stress and bottom drag), ...
Molly O�Neil Baringer; James F. Price
Numerical calculation of the moments of the population balance equation
The combined CFD-PBM (population balance models) are computationally intensive, so a possibility is to calculate only a few moments of the probability density function (PDF) of the PBM minimizing the computational costs. However, this formulation results ... Keywords: least squares method, population balance equation, quadrature approximation
C. A. Dorao; H. A. Jakobsen
MONTICELLO NPL SITES Minutes and Action Items of the Federal Facilities Agreement Meeting
Office of Legacy Management (LM)
Minutes and Action Items of the Federal Facilities Agreement Meeting Minutes and Action Items of the Federal Facilities Agreement Meeting September 16 and 17,2008 Meeting Location U.S. Department of Energy Site Office, Monticello, Utah Meeting Attendees Jalena Dayvault- U.S. Department of Energy Tim Bartlett- S.M. Stoller Todd Moon- S.M. Stoller Linda Sheader- S. M. Stoller Paul Wetherstein- S.M. Stoller Brent Everett- Utah Department of Environmental Quality Duane Mortensen- Utah Department of Environmental Quality Paul Mushovic- U.S. Environmental Protection Agency Rob Stites- U.S. Environmental Protection Agency (participated by phone) Christina Wilson- U.S. Environmental Protection Agency (participated by phone) Meeting topics and discussion points are summarized under the headings listed below. The agenda and copies of handouts presented during the meeting are attached to this report.
GARS DSOC Closed Action Items -9/19/13 Status Dept.
Closed Action Items -9/19/13 Status Closed Action Items -9/19/13 Status Dept. Type of Concern Issue Action Owner Status Originator NE Security/ Operations B. 130 Security violation should a BNL staff member comment on a classified document that has been published in a newspaper, etc. GARS Operational Security Team has made recommendations. New Issues have been added to the list under Security/Operations. GARS OPSEC Team Closed Stand Down NE & NN Security/ Operations * OUO & Proprietary Materials - concern that every is not aware of how to handle OUO & Proprietary material/documents; B815 custodian has master key to all offices - definite risk when OUO & Proprietary Material being used. Also a concern for personal files containing private information. * Classification review/refresher need for people so that
Microsoft Word - BSA NC Items Rev9 draft clean _3_.docx
9; (Apr. 2011) 1 of 16 9; (Apr. 2011) 1 of 16 BROOKHAVEN SCIENCE ASSOCIATES, LLC GENERAL TERMS AND CONDITIONS FOR NON-COMMERCIAL ITEMS AT BROOKHAVEN NATIONAL LABORATORY Article 1 Definitions 2 Article 2 Order of Precedence 2 Article 3 Acceptance of Agreement 2 Article 4 Complete Agreement 3 Article 5 Assignment 3 Article 6 Compliance with Laws and Regulations 3 Article 7 Independent Contractor; Hold Harmless 3 Article 8 Notice Regarding Late Delivery 4 Article 9 Inspection and Acceptance 4 Article 10 No Waiver 5 Article 11 New Materials 5 Article 12 Suspect/Counterfeit Items 5 Article 13 Hazardous Material Identification and Material Safety Data 6 Article 14 Title and Risk of Loss 6 Article 15 Warranty 6 Article 16 Payment 7 Article 17 Taxes 7 Article 18 Extras 7
Microsoft Word - BSA_NC_Items_Rev6 eVerify Final.doc
6; (Jan. 2010) 1 of 13 6; (Jan. 2010) 1 of 13 ATTACHMENT A BROOKHAVEN SCIENCE ASSOCIATES, LLC GENERAL TERMS AND CONDITIONS FOR NON-COMMERCIAL ITEMS AT BROOKHAVEN NATIONAL LABORATORY Article 1 Definitions 2 Article 2 Order of Precedence 2 Article 3 Acceptance of Agreement 2 Article 4 Complete Agreement 3 Article 5 Assignment 3 Article 6 Compliance with Laws and Regulations 3 Article 7 Independent Contractor; Hold Harmless 3 Article 8 Notice Regarding Late Delivery 3 Article 9 Inspection and Acceptance 4 Article 10 No Waiver 4 Article 11 New Materials 5 Article 12 Suspect/Counterfeit Items 5 Article 13 Hazardous Material Identification and Material Safety Data 6 Article 14 Title and Risk of Loss 6 Article 15 Warranty 6 Article 16 Payment 6 Article 17 Taxes 7 Article 18 Extras 7
GARS DSOC Open Action Items -9/19/13 Status Action
Open Action Items -9/19/13 Status Open Action Items -9/19/13 Status Action ID # Dept Type of Concern Issue Action Owner Status Originator Priority 46 DA Security/ Operations The use of Entrust is a vital component of cyber security. The team recommends that a solution to funding the startup and enduring cost be evaluated by the GARS Business office and BNL Cyber Security. Expand and encourage greater usage of Entrust across all categories of sensitive information and employees. 8/6 - Gerry sent a message to T. Schlagel 8/24/12-Testing alt approach. ITD /GARS in communication. 10/5 - G. Stokes to contact T. Schlagel 10/12 - T. Schlagel updated Gerry on progress using Entrust for BNL using the Argonne Solution 10/26 - Solution for system is in process 11/9 - K. McIntyre and K. Gillen on Entrust. Working thru
Form EIA-930 HOURLY AND DAILY BALANCING AUTHORITY OPERATIONS REPORT
930 930 HOURLY AND DAILY BALANCING AUTHORITY OPERATIONS REPORT INSTRUCTIONS Due Date: mm/dd/yyyy Approved: OMB No. 1905-0129 Approval Expires: 10/31/2016 Burden: 0.19 hours Page 1 Draft for Discussion only PURPOSE Form EIA-930 requires Internet posting of hourly balancing authority operating data. The posted data are used to monitor the current status and trends of the electric power industry, and to support enhancement of electric system operations. REQUIRED RESPONDENTS For the contiguous United States: all entities that are listed in NERC's Compliance Registry as a balancing authority must post balancing authority operating information required by this survey. Other than the Midwest ISO (MISO), registered balancing authorities that are parties
Load Balancing Of Parallel Monte Carlo Transport Calculations
Load Balancing Of Parallel Load Balancing Of Parallel Monte Carlo Transport Calculations R.J. Procassini, M. J. O'Brien and J.M. Taylor Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, CA 94551 The performance of parallel Monte Carlo transport calculations which use both spatial and particle parallelism is increased by dynamically assigning processors to the most worked domains. Since the particle work load varies over the course of the simulation, each cycle this algorithm determines if dynamic load balancing would speed up the calculation. If load balancing is required, a small number of particle communications are initiated in order to achieve load balance. This method has decreased the parallel run time by more than a factor of three for certain criticality
FY 2007 Annual Uncosted Balances Report | Department of Energy
Annual Uncosted Balances Reports » FY 2007 Annual Annual Uncosted Balances Reports » FY 2007 Annual Uncosted Balances Report FY 2007 Annual Uncosted Balances Report The Department faced significant challenges due to the unusually long Continuing Resolution (CR), which extended until April 2007. Under the CR the Department must act conservatively to ensure that obligations and costs are restrained in order to mitigate any negative impacts should actual appropriations differ significantly from planned and budgeted amounts. In addition, the Department is prohibited from engaging in any "new starts" for contracts or projects, which means that these activities are deferred until later in the year, thereby increasing the amount of uncosted balances at year-end since the costing cycle is, in essence, no longer on a fiscal
Liquefied natural gas. A literature survey issued quarterly, October--December 1976. [About 130 items
A bibliography is compiled on LNG. In this issue, about 130 items are categorized in the following areas: thermodynamic, other properties, and phase equilibria of methane; other properties of methane mixtures; liquefaction and separation; regasification; peak shaving and terminal storage plants; liquid storage; importation of LNG; ground and sea transport; liquid pipelines; heat and mass transport; safety; sorption; instrumentation; gas fields and cavern storage; transportation and other applications; general references; economic factors; miscellaneous; patents; energy; and SNG. (MCW)
Liquefied natural gas. A literature survey issued quarterly, April--June 1976. [About 250 items
A bibliography is compiled on LNG. In this issue, about 250 items are categorized in the following areas: thermodynamic, other properties, and phase equilibria of methane; other properties of methane mixtures; liquefaction and separation; regasification; peak shaving and terminal storage plants; liquid storage; importation of LNG; ground and sea transport; liquid pipelines; heat and mass transport; safety; sorption; instrumentation; gas fields and cavern storage; transportation and other applications; general references; economic factors; miscellaneous; patents; energy; and SNG. (MCW)
Liquefied natural gas. A literature survey issued quarterly, January--March 1976. [About 400 items
A bibliography is compiled on LNG. In this issue, over four hundred items are categorized in the following areas: thermodynamic, other properties, and phase equilibria of methane; other properties of methane mixtures; liquefaction and separation; regasification; peak shaving and terminal storage plants; liquid storage; importation of LNG; ground and sea transportation; liquid pipelines; heat and mass transport; safety; sorption; instrumentation; gas fields and cavern storage; transportation and other applications; general references; economic factors; miscellaneous; patents; energy; and SNG. (MCW)
Liquefied natural gas. A literature survey issued quarterly, July--September 1976. [About 150 items
A bibliography is compiled on LNG. In this issue, about 150 items are categorized in the following areas: thermodynamic, other properties, and phase equilibria of methane; other properties of methane mixtures; liquefaction and separation; regasification; peak shaving and terminal storage plants; liquid storage; importation of LNG; ground and sea transport; liquid pipelines; heat and mass transport; safety; sorption; instrumentation; gas fields and cavern storage; transportation and other applications; general references; economic factors; miscellaneous; patents; energy; and SNG. (MCW)
Information for Use in Conducting Audits of Supplier Commercial Grade Item Dedication Programs
The Electric Power Research Institute (EPRI) has published a series of documents pertaining to commercial grade item dedication (CGID). Each of these documents was written from a licensees perspective and was intended for use by member utilities. EPRI released six of these documents as copyrighted publications in 2007, making them available to suppliers in the nuclear generation industry. Suppliers can use these documents as guidance for implementing supplier CGID programs. Recent experience conducting N...
An Integrated RFID and Barcode Tagged Item Inventory System for Deployment at New Brunswick Laboratory
New Brunswick Laboratory (NBL) has a numerous inventory containing thousands of plutonium and uranium certified reference materials. The current manual inventory process is well established but is a lengthy process which requires significant oversight and double checking to ensure correctness. Oak Ridge National Laboratory has worked with NBL to develop and deploy a new inventory system which utilizes handheld computers with barcode scanners and radio frequency identification (RFID) readers termed the Tagged Item Inventory System (TIIS). Certified reference materials are identified by labels which incorporate RFID tags and barcodes. The label printing process and RFID tag association process are integrated into the main desktop software application. Software on the handheld computers syncs with software on designated desktop machines and the NBL inventory database to provide a seamless inventory process. This process includes: 1) identifying items to be inventoried, 2) downloading the current inventory information to the handheld computer, 3) using the handheld to read item and location labels, and 4) syncing the handheld computer with a designated desktop machine to analyze the results, print reports, etc. The security of this inventory software has been a major concern. Designated roles linked to authenticated logins are used to control access to the desktop software while password protection and badge verification are used to control access to the handheld computers. The overall system design and deployment at NBL will be presented. The performance of the system will also be discussed with respect to a small piece of the overall inventory. Future work includes performing a full inventory at NBL with the Tagged Item Inventory System and comparing performance, cost, and radiation exposures to the current manual inventory process.
Younkin, James R [ORNL; Kuhn, Michael J [ORNL; Gradle, Colleen [New Brunswick Laboratory, Argonne, IL; Preston, Lynne [U.S. Department of Energy, Office of Health, Safety and Security; Thomas, Brigham B. [ORNL; Laymance, Leesa K [ORNL; Kuziel, Ron [DOE SC - Chicago Office
PARKER-HEADGATE ROCK & PARKER-GILA PARKER-HEADGATE ROCK & PARKER-GILA 161-kV TRANSMISSION LINE Cross Arm Repair and Helicopter Staging Areas Figure 1. Project Location Project Location j PARKER-HEADGATE ROCK & PARKER-GILA 161-kV TRANSMISSION LINE Cross Arm Repair and Helicopter Staging Areas Figure 2a. Project Area (North) Staging Area #4 Structure 3/5 Structure 3/6 Structure 3/4 Structure 3/7 Structure 3/5 Structure 3/6 PARKER-HEADGATE ROCK 161-kV TRANSMISSION LINE PARKER-GILA 161-kV TRANSMISSION LINE Structure 4/6 Legal Description N N 1:24000 scale 1:24000 scale Section Township Range 17 20 2 N 27 E 31 11 N 18 W 6 10 N USGS TOPO MAP: Cross Roads, Arizona-California USGS TOPO MAP: Cross Roads, Arizona-California PARKER-HEADGATE ROCK & PARKER-GILA 161-kV TRANSMISSION LINE Cross Arm Repair and Helicopter Staging Areas
Energy extraction characteristics of hot dry rock geothermal systems
The LASL Hot Dry Rock Geothermal Energy Project is investigating methods to extract energy at useful temperatures and rates from naturally heated crustal rock in locations where the rock does not spontaneously yield natural steam or hot water at a rate sufficient to support commercial utilization. Several concepts are discussed for application to low and high permeability formations. The method being investigated first is intended for use in formations of low initial permeability. It involves producing a circulation system within the hot rock by hydraulic fracturing to create a large crack connecting two drilled holes, then operating the system as a closed pressurized-water heat-extration loop. With the best input assumptions that present knowledge provides, the fluid-flow and heat-exchange calculations indicate that unpumped (buoyant) circulation through a large hydraulic fracture can maintain a commercially useful rate of heat extraction throughout a usefully long system life. With a power cycle designed for the temperature of the fluid produced, total capital investment and generating costs are estimated to be at least competitive with those of fossil-fuel-fired and nuclear electric plants. This paper discusses the potential of the hot dry rock resource, various heat extraction concepts, prediction of reservoir performance, and economic factors, and summarizes recent progress in the LASL field program.
Tester, J.W.; Smith, M.C.
Los Alamos hot dry rock geothermal energy experiment
Recent heat flow data indicates that about 95,000 sq. mi. in 13 western U.S. states is underlain, at a depth of 5 km (16,400 ft) by hot dry rock at temperatures above 290/sup 0/C (440/sup 0/F.). Therefore a geothermal energy development program was undertaken to develop methods from extracting thermal energy from hot rock in the earth crust by man-made underground circulation systems; demonstrate the commercial feasibility of such systems; and encourage use of this technology. Experiments performed on the Jemez Plateau in New Mexico are described with information on the drilling of boreholes, hydraulic fracturing of hot rocks, well logging, and environmental monitoring to establish base line data and define the potential effects of the project. The technical achievements of the project include boreholes were drilled to 3k (10,000 ft) with bottomhole temperatures of approximately 200/sup 0/C (390/sup 0/F); hydraulic fracturing produced fractured regions with 150 m (500 ft) radii; at least 90 percent of the water injected was recovered; and data was obtained on geologic conditions, seismic effects, and thermal, fracturing, and chemical properties of the downhole rocks. A geothermal power-production system model was formulated for evaluating the total cost of developing power production using a hot-dry-rock geothermal energy source. (LCL)
Pettitt, R.A.
The Effect of Heterogeneity on Matrix Acidizing of Carbonate Rocks
In matrix acidizing, the goal is to dissolve minerals in the rock to increase well productivity. This is accomplished by injecting an application-specific solution of acid into the formation at a pressure between the pore pressure and fracture pressure. A hydrochloric acid solution is used in carbonate reservoirs, which actually dissolves the calcite rock matrix in the form of conductive channels called wormholes. These wormholes propagate from the wellbore out into the reservoir, bypassing the damaged zone. In matrix acidizing of carbonates, there are four parameters that affect performance: the concentration of calcite present, injection rate of the acid, reaction type, and heterogeneity. Of these parameters, this paper will focus on how rock heterogeneity affects performance. To do this, a coreflood and acidizing apparatus was used to acidize heterogeneous limestone core samples. Rock characterizations and volumetric measurements were considered with the results from these experiments, which made it possible to correlate and quantify the results with rock and volume parameters. It was found that the core samples with more and larger heterogeneities generally required less acid (measured in pore volumes) to achieve breakthrough, that is, a wormhole created axially from one end of the core to the other. This value for pore volumes to breakthrough was one to two orders of magnitude less than more homogeneous samples. The general procedure and best practices for acidizing the core samples is also detailed in this thesis. This procedure was followed for preparation, coreflooding, and acidizing for all core samples.
Keys, Ryan S.
Proceedings of the scientific visit on crystalline rock repository development.
A scientific visit on Crystalline Rock Repository Development was held in the Czech Republic on September 24-27, 2012. The visit was hosted by the Czech Radioactive Waste Repository Authority (RAWRA), co-hosted by Sandia National Laboratories (SNL), and supported by the International Atomic Energy Agency (IAEA). The purpose of the visit was to promote technical information exchange between participants from countries engaged in the investigation and exploration of crystalline rock for the eventual construction of nuclear waste repositories. The visit was designed especially for participants of countries that have recently commenced (or recommenced) national repository programmes in crystalline host rock formations. Discussion topics included repository programme development, site screening and selection, site characterization, disposal concepts in crystalline host rock, regulatory frameworks, and safety assessment methodology. Interest was surveyed in establishing a %E2%80%9Cclub,%E2%80%9D the mission of which would be to identify and address the various technical challenges that confront the disposal of radioactive waste in crystalline rock environments. The idea of a second scientific visit to be held one year later in another host country received popular support. The visit concluded with a trip to the countryside south of Prague where participants were treated to a tour of the laboratory and underground facilities of the Josef Regional Underground Research Centre.
Mariner, Paul E.; Hardin, Ernest L.; Miksova, Jitka [RAWRA, Czech Republic
Modeling of coupled thermodynamic and geomechanical performance of underground compressed air energy storage (CAES) in lined rock caverns
We applied coupled nonisothermal, multiphase fluid flow and geomechanical numerical modeling to study the coupled thermodynamic and geomechanical performance of underground compressed air energy storage (CAES) in concrete-lined rock caverns. The paper focuses on CAES in lined caverns at relatively shallow depth (e.g., 100 m depth) in which a typical CAES operational pressure of 5 to 8 MPa is significantly higher than both ambient fluid pressure and in situ stress. We simulated a storage operation that included cyclic compression and decompression of air in the cavern, and investigated how pressure, temperature and stress evolve over several months of operation. We analyzed two different lining options, both with a 50 cm thick low permeability concrete lining, but in one case with an internal synthetic seal such as steel or rubber. For our simulated CAES system, the thermodynamic analysis showed that 96.7% of the energy injected during compression could be recovered during subsequent decompression, while 3.3% of the energy was lost by heat conduction to the surrounding media. Our geomechanical analysis showed that tensile effective stresses as high as 8 MPa could develop in the lining as a result of the air pressure exerted on the inner surface of the lining, whereas thermal stresses were relatively smaller and compressive. With the option of an internal synthetic seal, the maximum effective tensile stress was reduced from 8 to 5 MPa, but was still in substantial tension. We performed one simulation in which the tensile tangential stresses resulted in radial cracks and air leakage though the lining. This air leakage, however, was minor (about 0.16% of the air mass loss from one daily compression) in terms of CAES operational efficiency, and did not significantly impact the overall energy balance of the system. However, despite being minor in terms of energy balance, the air leakage resulted in a distinct pressure increase in the surrounding rock that could be quickly detected using pressure monitoring outside the concrete lining.
Rutqvist, J.; Kim, H. -M.; Ryu, D. -W.; Synn, J. -H.; Song, W. -K.
Black Rock III Geothermal Project | Open Energy Information
Black Rock III Geothermal Project Black Rock III Geothermal Project Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Development Project: Black Rock III Geothermal Project Project Location Information Coordinates The following coordinate was not recognized: 33°19'59" N, 115°50'3 W.The following coordinate was not recognized: 33°19'59" N, 115°50'3 W. Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}
Isotopic Analysis- Rock At Valles Caldera - Sulphur Springs Area
source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Isotopic Analysis- Rock At Valles Caldera - Sulphur Springs Area (Woldegabriel & Goff, 1992) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Rock At Valles Caldera - Sulphur Springs Area (Woldegabriel & Goff, 1992) Exploration Activity Details Location Valles Caldera - Sulphur Springs Area Exploration Technique Isotopic Analysis- Rock Activity Date Usefulness not indicated DOE-funding Unknown Notes Useful for age determinations - not indicated is useful for exploration. References Giday WoldeGabriel, Fraser Goff (1992) K-Ar Dates Of Hydrothermal
3rd Rock Systems and Technologies | Open Energy Information
Rock Systems and Technologies Rock Systems and Technologies Jump to: navigation, search Name 3rd Rock Systems and Technologies Place Burlingame, California Zip 94010 Sector Renewable Energy, Services Product Provides proven renewable energy technologies and consulting services to residential, commercial, and industrial clients. Coordinates 38.753055°, -95.834619° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.753055,"lon":-95.834619,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
AltaRock Energy Inc | Open Energy Information
AltaRock Energy Inc AltaRock Energy Inc Jump to: navigation, search Name AltaRock Energy Address 7900 E Green Lake Drive N Place Seattle, Washington Zip 98103 Sector Geothermal energy Product Creates geothermal energy reservoirs, develops geothermal facilities Website http://www.altarockenergy.com/ Coordinates 47.6855466°, -122.3364827° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":47.6855466,"lon":-122.3364827,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Chimney Rock Public Power Dist | Open Energy Information
Chimney Rock Public Power Dist Chimney Rock Public Power Dist Jump to: navigation, search Name Chimney Rock Public Power Dist Place Nebraska Utility Id 3495 Utility Location Yes Ownership P NERC Location MRO NERC MRO Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png ELECTRIC THERMAL STORAGE Commercial GENERAL SEASONAL Commercial IRRIGATION SERVICE Single Phase Commercial IRRIGATION SERVICE Three Phase Commercial IRRIGATION STANDBY RATE, Single Phase Commercial IRRIGATION STANDBY RATE, Three Phase Commercial LARGE POWER SERVICE Commercial RESIDENTIAL SERVICE AND SEASONAL SERVICE Residential
City of Rock Hill, South Carolina (Utility Company) | Open Energy
Rock Hill, South Carolina (Utility Company) Rock Hill, South Carolina (Utility Company) Jump to: navigation, search Name City of Rock Hill Place South Carolina Utility Id 16195 Utility Location Yes Ownership M NERC Location SERC Activity Bundled Services Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png 175 Watt HPS lighting Lighting Economic Development Rate (Schedule EDR -1) Commercial Economic Development Rate (Schedule EDR -2) Industrial Flood Lighting Rate 1000 Watt HPS Lighting Flood Lighting Rate 400 Watt HPS Lighting General Service/ Non Demand (Schedule GS) Commercial General Service/Demand (Schedule GD) Industrial
Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions | Open
Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Jump to: navigation, search Geothermal Lab Call Projects for Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026 further results","default":"","geoservice":"google","zoom":false,"width":"600px","height":"350px","centre":false,"layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","icon":"","visitedicon":"","forceshow":true,"showtitle":true,"hidenamespace":false,"template":false,"title":"","label":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"locations":[{"text":"
Search for magnetic monopoles in polar volcanic rocks
For a broad range of values of magnetic monopole mass and charge, the abundance of monopoles trapped inside the Earth would be expected to be enhanced in the mantle beneath the geomagnetic poles. A search for magnetic monopoles was conducted using the signature of an induced persistent current following the passage of igneous rock samples through a SQUID-based magnetometer. A total of 24.6 kg of rocks from various selected sites, among which 23.4 kg are mantle-derived rocks from the Arctic and Antarctic areas, was analysed. No monopoles were found and a 90% confidence level upper limit of $9.8\\cdot 10^{-5}$/gram is set on the monopole density in the search samples.
K. Bendtz; D. Milstead; H. -P. H�chler; A. M. Hirt; P. Mermod; P. Michael; T. Sloan; C. Tegner; S. B. Thorarinsson
Alternate operating strategies for Hot Dry Rock geothermal reservoirs
Flow testing and heat extraction experiments in prototype Hot Dry Rock (HDR) geothermal reservoirs have uncovered several challenges which must be addressed before commercialization of the technology is possible. Foremost among these is the creation of a reservoir which simultaneously possesses high permeability pathways and a large volume of fractured rock. The current concept of heat extraction -- a steady state circulation system with fluid pumping from the injection well to a single, low pressure production well -- may limit our ability to create heat extraction systems which meet these goals. A single injection well feeding two production wells producing fluid at moderate pressures is shown to be a potentially superior way to extract heat. Cyclic production is also demonstrated to have potential as a method for sweeping fluid through a larger volume of rock, thereby inhibiting flow channeling and increasing reservoir lifetime. 10 refs., 4 figs., 2 tabs.
Robinson, B.A.
Comparison of Bottom-Up and Top-Down Forecasts: Vision Industry Energy Forecasts with ITEMS and NEMS
Comparisons are made of energy forecasts using results from the Industrial module of the National Energy Modeling System (NEMS) and an industrial economic-engineering model called the Industrial Technology and Energy Modeling System (ITEMS), a model developed for industrial energy analysis at the Pacific Northwest National Laboratory. Although the results are mixed, generally ITEMS show greater penetration of energy efficient technologies and thus lower energy use, even though the business as usual forecasts for ITEMS uses a higher discount rate than NEMS uses.
Roop, J. M.; Dahowski, R. T
Simulation of blasting induced rock motion using spherical element models
Control of the rock motion associated with blasting can have significant economic benefits. For example, surface coal mining can be made more efficient if the overburden material can be cast further with explosives, leaving less work for mechanical equipment. The final muck pile shape in very type of surface and underground blasting is controlled by the blasting induced motion of the rock. A theoretically sound method of predicting rock motion will be beneficial to understanding the blasting process. Discrete element methods have been used for some time to predict rock motion resulting from blasting. What all of these approaches had in common was the use of polygonal elements with corners and sides as well as aspect ratio. Reasonably good results were obtained but treatment of the interactions of the corners and sides of elements was a computationally intensive process that made long simulations with many elements expensive to perform. The use of spherical elements showed increased efficiency but lacked the mechanisms for treating the bulking of the rock mass. The computer program developed was converted from an explicit code to an event-driven code and some bulking mechanisms were added that allowed spherical elements to exert a torque on other spherical elements with which contact was made. The architecture of this program and its event-driven nature made it difficult to vectorize for efficient execution on vector processing machines. A new code called DMC (Distinct Motion Code) has been developed this past year. DMC was designed and written especially to take advantage of super computer vector processing capabilities. This paper will discuss the use of DMC to perform accurate rock motion calculations with very reasonable computation times. 9 refs., 7 figs., 3 tabs.
Taylor, L.M.; Preece, D.S. (Hibbitt, Karlsson and Sorensen, Providence, RI (USA); Sandia National Labs., Albuquerque, NM (USA))
Microfractures in rocks from two geothermal areas | Open Energy Information
source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Microfractures in rocks from two geothermal areas Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Microfractures in rocks from two geothermal areas Details Activities (2) Areas (2) Regions (0) Abstract: Core samples from the Dunes, California, and Raft River, Idaho, geothermal areas show diagenesis superimposed on episodic fracturing and fracture sealing. The minerals that fill fractures show significant temporal variations. Sealed fractures can act as barriers to fluid flow. Sealed fractures often mark boundaries between regions of significantly
Los Alamos hot-dry-rock project: recent results
A new deeper reservoir is presently being investigated at the Laboratory's Fenton Hill Hot Dry Rock (HDR) site. The region surrounding the lower of two inclined boreholes, directionally-drilled to about 4 km in hot crystalline rock, has been pressurized in a sequence of injection tests. Based primarily on the measurements made by two close-in microseismic detectors, two similar volumetric reservoir regions have been developed by massive hydraulic fracturing, but with no significant hydraulic communication with the upper borehole as yet.
As part of our study on ''Relationships between seismic properties and rock microstructure'', we have (1) Studied relationships between velocity and permeability. (2) Used independent experimental methods to measure the elastic moduli of clay minerals as functions of pressure and saturation. (3) Applied different statistical methods for characterizing heterogeneity and textures from scanning acoustic microscope (SAM) images of shale microstructures. (4) Analyzed the directional dependence of velocity and attenuation in different reservoir rocks (5) Compared Vp measured under hydrostatic and non-hydrostatic stress conditions in sands. (6) Studied stratification as a source of intrinsic anisotropy in sediments using Vp and statistical methods for characterizing textures in sands.
Ozone generation by rock fracture: Earthquake early warning?
We report the production of up to 10 ppm ozone during crushing and grinding of typical terrestrial crust rocks in air, O{sub 2} and CO{sub 2} at atmospheric pressure, but not in helium or nitrogen. Ozone is formed by exoelectrons emitted by high electric fields, resulting from charge separation during fracture. The results suggest that ground level ozone produced by rock fracture, besides its potential health hazard, can be used for early warning in earthquakes and other catastrophes, such as landslides or land shifts in excavation tunnels and underground mines.
Baragiola, Raul A.; Dukes, Catherine A.; Hedges, Dawn [Engineering Physics, University of Virginia, Charlottesville, Virginia 22904 (United States)
A Kaleidoscope of Understanding: Comparing Real with Random Data, Using Binary-Choice Items, to Study Preservice Elementary Teachers� Knowledge of Climate Change
The authors used a 59-item survey to probe the understanding of climate change by 89 Ontario preservice teachers. The study investigated the usefulness of comparing real survey data from closed, binary choice items, with randomly generated data. ...
Douglas Hayhoe; Shawn Bullock; Katharine Hayhoe
Surface water supply for the Clearlake, California Hot Dry Rock Geothermal Project
It is proposed to construct a demonstration Hot Dry Rock (HDR) geothermal plant in the vicinity of the City of Clearlake. An interim evaluation has been made of the availability of surface water to supply the plant. The evaluation has required consideration of the likely water consumption of such a plant. It has also required consideration of population, land, and water uses in the drainage basins adjacent to Clear Lake, where the HDR demonstration project is likely to be located. Five sources were identified that appear to be able to supply water of suitable quality in adequate quantity for initial filling of the reservoir, and on a continuing basis, as makeup for water losses during operation. Those sources are California Cities Water Company, a municipal supplier to the City of Clearlake; Clear Lake, controlled by Yolo County Flood Control and Water Conservation District; Borax Lake, controlled by a local developer; Southeast Regional Wastewater Treatment Plant, controlled by Lake County; and wells, ponds, and streams on private land. The evaluation involved the water uses, water rights, stream flows, precipitation, evaporation, a water balance, and water quality. In spite of California`s prolonged drought, the interim conclusion is that adequate water is available at a reasonable cost to supply the proposed HDR demonstration project.
Jager, A.R.
Evidence of critical balance in kinetic Alfven wave turbulence simulations
A numerical simulation of kinetic plasma turbulence is performed to assess the applicability of critical balance to kinetic, dissipation scale turbulence. The analysis is performed in the frequency domain to obviate complications inherent in performing a local analysis of turbulence. A theoretical model of dissipation scale critical balance is constructed and compared to simulation results, and excellent agreement is found. This result constitutes the first evidence of critical balance in a kinetic turbulence simulation and provides evidence of an anisotropic turbulence cascade extending into the dissipation range. We also perform an Eulerian frequency analysis of the simulation data and compare it to the results of a previous study of magnetohydrodynamic turbulence simulations.
TenBarge, J. M.; Howes, G. G. [Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242 (United States)
Control of carbon balance in a silicon smelting furnace
The present invention is a process for the carbothermic reduction of silicon dioxide to form elemental silicon. Carbon balance of the process is assessed by measuring the amount of carbon monoxide evolved in offgas exiting the furnace. A ratio of the amount of carbon monoxide evolved and the amount of silicon dioxide added to the furnace is determined. Based on this ratio, the carbon balance of the furnace can be determined and carbon feed can be adjusted to maintain the furnace in carbon balance.
Dosaj, V.D.; Haines, C.M.; May, J.B.; Oleson, J.D.
Solar Pilot Plant project review No. 9, May 4--5, 1977. CDRL item 10
Drawings and illustrations for the project review are presented. These are included for the 10 MW(e) solar pilot plant, the collector subsystem, the receiver subsystem, the electrical power generation system and balance of plant, plant controls and transient analysis, availability and safety, pilot and commercial plant designs, and summary and recommendations. (MHR)
DOCKET: A-98-49 Item: II-B1-27
in under-balanced drilling, for reservoir clean-up and for enhanced oil recovery in porous sand foams for underbalanced drilling. In: SPE International Symposium on Oilfield Chemistry, paper SPE 64999 as a rigid body lubricated by water generated by breaking foam at the wall. A lu- brication model leading
Environmental assessment of remedial action at the Slick Rock uranium mill tailings sites, Slick Rock, Colorado
The Uranium Mill Tailings Radiation Control Act of 1978, hereafter referred to as the UMTRCA, authorized the US Department of Energy (DOE) to clean up two uranium mill tailings processing sites near Slick Rock, Colorado, in San Miguel County. The purpose of the cleanup is to reduce the potential health effects associated with the radioactive materials remaining on the processing sites and on vicinity properties (VPs) associated with the sites. The US Environmental Protection Agency (EPA) promulgated standards for the UMTRCA that contained measures to control the contaminated materials and to protect the ground water from further degradation. The sites contain concrete foundations of mill buildings, tailings piles, and areas contaminated by windblown and waterborne radioactive tailings materials. The proposed action is to remediate the UC and NC sites by removing all contaminated materials within the designated site boundaries or otherwise associated with the sites, and relocating them to, and stabilizing them at, a location approximately 5 road mi (8 km) northeast of the processing sites on land administered by the US Bureau of Land Management (BLM). Remediation would be performed by the DOE`s Uranium Mill Tailings Remedial Action (UMTRA) Project.
Hot dry rock energy: Hot dry rock geothermal development program. Progress report. Fiscal year 1993
Extended flow testing at the Fenton Hill Hot Dry Rock (HDR) test facility concluded in Fiscal Year 1993 with the completion of Phase 2 of the long-term flow test (LTFT) program. As is reported in detail in this report, the second phase of the LTFT, although only 55 days in duration, confirmed in every way the encouraging test results of the 112-day Phase I LTFT carried out in Fiscal Year 1992. Interim flow testing was conducted early in FY 1993 during the period between the two LTFT segments. In addition, two brief tests involving operation of the reservoir on a cyclic schedule were run at the end of the Phase 2 LTFT. These interim and cyclic tests provided an opportunity to conduct evaluations and field demonstrations of several reservoir engineering concepts that can now be applied to significantly increase the productivity of HDR systems. The Fenton Hill HDR test facility was shut down and brought into standby status during the last part of FY 1993. Unfortunately, the world`s largest, deepest, and most productive HDR reservoir has gone essentially unused since that time.
Salazar, J.; Brown, M. [eds.
Fluid-rock interaction: A reactive transport approach
Fluid-rock interaction (or water-rock interaction, as it was more commonly known) is a subject that has evolved considerably in its scope over the years. Initially its focus was primarily on interactions between subsurface fluids of various temperatures and mostly crystalline rocks, but the scope has broadened now to include fluid interaction with all forms of subsurface materials, whether they are unconsolidated or crystalline ('fluid-solid interaction' is perhaps less euphonious). Disciplines that previously carried their own distinct names, for example, basin diagenesis, early diagenesis, metamorphic petrology, reactive contaminant transport, chemical weathering, are now considered to fall under the broader rubric of fluid-rock interaction, although certainly some of the key research questions differ depending on the environment considered. Beyond the broadening of the environments considered in the study of fluid-rock interaction, the discipline has evolved in perhaps an even more important way. The study of water-rock interaction began by focusing on geochemical interactions in the absence of transport processes, although a few notable exceptions exist (Thompson 1959; Weare et al. 1976). Moreover, these analyses began by adopting a primarily thermodynamic approach, with the implicit or explicit assumption of equilibrium between the fluid and rock. As a result, these early models were fundamentally static rather than dynamic in nature. This all changed with the seminal papers by Helgeson and his co-workers (Helgeson 1968; Helgeson et al. 1969) wherein the concept of an irreversible reaction path was formally introduced into the geochemical literature. In addition to treating the reaction network as a dynamically evolving system, the Helgeson studies introduced an approach that allowed for the consideration of a multicomponent geochemical system, with multiple minerals and species appearing as both reactants and products, at least one of which could be irreversible. Helgeson's pioneering approach was given a more formal kinetic basis (including the introduction of real time rather than reaction progress as the independent variable) in subsequent studies (Lasaga 1981; Aagaard and Helgeson 1982; Lasaga 1984). The reaction path approach can be used to describe chemical processes in a batch or closed system (e.g., a laboratory beaker), but such systems are of limited interest in the Earth sciences where the driving force for most reactions is transport. Lichtner (1988) clarified the application of the reaction path models to water-rock interaction involving transport by demonstrating that they could be used to describe pure advective transport through porous media. By adopting a reference frame which followed the fluid packet as it moved through the medium, the reaction progress variable could be thought of as travel time instead. Multi-component reactive transport models that could treat any combination of transport and biogeochemical processes date back to the early 1980s. Berner and his students applied continuum reactive transport models to describe processes taking place during the early diagenesis of marine sediments (Berner 1980). Lichtner (1985) outlined much of the basic theory for a continuum model for multicomponent reactive transport. Yeh and Tripathi (1989) also presented the theoretical and numerical basis for the treatment of reactive contaminant transport. Steefel and Lasaga (1994) presented a reactive flow and transport model for nonisothermal, kinetically-controlled water-rock interaction and fracture sealing in hydrothermal systems based on simultaneous numerical solution of both reaction and transport This chapter begins with a review of the important transport processes that affect or even control fluid-rock interaction. This is followed by a general introduction to the governing equations for reactive transport, which are broadly applicable to both qualitative and quantitative interpretations of fluid-rock interactions. This framework is expanded through a discussion of specific topics that are the f
Steefel, C.; Maher, K.
Suspect/Counterfeit Items Criteria Review and Approach Document (CRAD) NNSA/Nevada Site Office Facility Representative Division
Management should have a formal system under Quality Assurance with adequate controls defined and implemented to identify and preclude Suspect/Counterfeit Items (S/CI) from being introduced into...
Beginning Foreign Obligation Balances for the Power Reactors Presentation
Beginning Foreign Obligation Balances Beginning Foreign Obligation Balances Beginning Foreign Obligation Balances Beginning Foreign Obligation Balances for the Power Reactors for the Power Reactors Michael J. Smith Michael J. Smith NAC International NAC International Obligations Accounting Implementation Workshop Obligations Accounting Implementation Workshop January 13, 2004 January 13, 2004 Crowne Crowne Plaza Plaza Ravinia Ravinia Atlanta, Georgia Atlanta, Georgia Project Purpose Project Purpose * Bridge the gap in foreign obligated (FO) inventory tracking for US power reactor RISs between 10/1/01 and 9/30/03 * Provide input for 10/1/03 FO beginning inventories in the NMMSS Obligations Accounting Implementation Workshop Obligations Accounting Implementation Workshop January 13, 2004 January 13, 2004 Crowne
DOE Solar Decathlon: News Blog » Energy Balance
Energy Balance Energy Balance Below you will find Solar Decathlon news from the Energy Balance archive, sorted by date. New Contest Data Displays Provide Insight into Competition Scoring Saturday, October 5, 2013 By Solar Decathlon New contest data displays are now available on the U.S. Department of Energy Solar Decathlon website. If you are interested in the real-time performance of each house and want to keep a close eye on the competition, check out the Contests section pages. In the Contests section, the pages for the measured contests (Comfort Zone, Hot Water, Appliances, Home Entertainment, and Energy Balance) explain the contest requirements and provide real-time graphical displays of the accumulated measurements/scores for each team. Roll your cursor over the graphics to see more detailed information about each contest. For example,
Surface Energy and Radiation Balance Systems: General Description and Improvements
Surface evaluation of sensible and latent heat flux densities and the components of the radiation balance were desired for various vegetative surfaces during the ASCOT84 experiment to compare with modeled results and to relate these values to ...
Leo J. Fritschen; James R. Simpson
Power balance in a helicon plasma source for space propulsion
Electric propulsion systems provide an attractive option for various spacecraft propulsion applications due to their high specific impulse. The power balance of an electric thruster based on a helicon plasma source is ...
Balance and the Slow Quasimanifold: Some Explicit Results
The ultimate limitations of the balance, slow-manifold, and potential vorticity inversion concepts are investigated. These limitations are associated with the weak but nonvanishing spontaneous-adjustment emission, or Lighthill radiation, of ...
Rupert Ford; Michael E. McIntyre; Warwick A. Norton